What is the most common anode binder??Anode binders play a crucial role in the performance of lithium-ion batteries, as they help to keep the active material, usually graphite, in place and stabilize the surface. In this article, we will explore the most common anode binder used in the industry today.The Ins and Outs of Anode BindersAnode binders are materials that are added to the electrode of a lithium-ion battery to improve its efficiency and lifespan. They act as a glue-like substance that bonds the active material to the current collector, keeping it in place while allowing for efficient electron transport.The Importance of Anode BindersWithout an anode binder, the active material in a battery's anode can become separated from the current collector, causing a decrease in efficiency and a shortened lifespan. Anode binders also enhance the stability and electrical conductivity of the anode, leading to better performance overall.Polyvinylidene Fluoride - the Most Common Anode BinderPolyvinylidene fluoride, or PVDF, is the most commonly used anode binder in the lithium-ion battery industry. It is a thermoplastic fluoropolymer that is known for its high stability, resistance to solvents, and ability to withstand high temperatures.Other Anode Binders Used in the IndustryAside from PVDF, other anode binders that are used in the lithium-ion battery industry include carboxymethyl cellulose (CMC), sodium alginate, and styrene butadiene rubber (SBR). Each of these binders has its advantages and disadvantages, but they are not as widely used as PVDF.PVDF in ActionPVDF is typically used in combination with a solvent, such as N-methyl pyrrolidone (NMP), to form a slurry that is then coated onto the copper foil current collector. The active material, usually graphite, is then added to the slurry to create the anode. PVDF also helps to prevent the formation of a solid-electrolyte interface, which can negatively affect the battery's performance.The Future of Anode BindersAs lithium-ion battery technology continues to improve, anode binders may also evolve to meet the demands of the industry. One area of interest is the development of binders that are less sensitive to temperature changes, as extreme temperatures can affect the stability and performance of the anode binder.ConclusionPolyvinylidene fluoride is the most common anode binder used in the lithium-ion battery industry, due to its high stability and resistance to solvents. However, other binders, such as CMC, sodium alginate, and SBR, are also used. The role of anode binders in the performance of lithium-ion batteries cannot be overstated, and as battery technology continues to advance, so too will anode binder technology.Quote InquiryContact us

Introduction Lithium-ion batteries are the most common type of rechargeable batteries used in portable electronic devices due to their high energy density and long cycle life. The anode in a Li-ion battery plays a crucial role in its performance and longevity. In this article, we will discuss the various materials used for anode in a Li-ion battery, their properties, and their advantages and disadvantages. Lithium Cobalt Oxide Lithium cobalt oxide (LiCoO2) was the first material used in the anode of a Li-ion battery. It has a high energy density, good thermal stability, and low self-discharge rate. However, it is expensive and has safety concerns due to its tendency to overheat and catch fire. Lithium Iron Phosphate Lithium iron phosphate (LiFePO4) is a safer and more stable alternative to lithium cobalt oxide. It has a lower energy density but a longer cycle life and does not overheat or catch fire. However, it is more expensive and heavier than other anode materials. Lithium Manganese Oxide Lithium manganese oxide (LiMn2O4) is a lower-cost alternative to lithium cobalt oxide. It has a good thermal stability and safety profile but a lower energy density and shorter cycle life. It is commonly used in electric vehicles due to its high power output. Lithium Nickel Cobalt Aluminum Oxide Lithium nickel cobalt aluminum oxide (LiNiCoAlO2), also known as NCA, is a high-performance anode material with a high energy density, long cycle life, and good thermal stability. It is commonly used in electric vehicles and portable electronic devices. However, it is expensive and has a safety concern due to its high nickel content. Lithium Nickel Manganese Cobalt Oxide Lithium nickel manganese cobalt oxide (LiNiMnCoO2), also known as NMC, is another high-performance anode material with a high energy density, long cycle life, and good thermal stability. It is less expensive than NCA but has a higher self-discharge rate and is less stable at high temperatures. Lithium Titanate Lithium titanate (Li4Ti5O12) is a unique anode material with a low energy density but an extremely long cycle life and fast charging capability. It is commonly used in electric buses and high-speed trains due to its high power output and safety profile. Silicon Silicon is a promising anode material due to its high capacity and abundance. However, it suffers from a rapid capacity decay and structural degradation during cycling. Researchers are currently exploring ways to overcome these challenges and make silicon a viable anode material in commercial Li-ion batteries. Garnet Garnet is a newer anode material that has shown promising results in terms of stability and ion conductivity. It is commonly used in solid-state Li-ion batteries, which have the potential to offer higher energy density, longer cycle life, and improved safety compared to traditional Li-ion batteries. Conclusion The anode is a critical component of a Li-ion battery, and its material choice affects the battery's performance, safety, and cost. There are various anode materials available, each with its own advantages and disadvantages. The selection of the anode material depends on the specific application and performance requirements.Quote InquiryContact us

The Importance of Polymer Binders in Lithium-Ion BatteriesWhen it comes to lithium-ion batteries, there are several critical components that determine the battery's performance and lifespan. One such essential component is the polymer binder. In this article, we'll take a closer look at what polymer binders are, their role in lithium-ion batteries, and how they impact battery performance.1. Defining Polymer BindersBefore we dive into the specifics of polymer binders in lithium-ion batteries, it's important to understand what polymer binders are. Polymer binders, or polymeric binders, are substances that help bind or glue materials together. They are essential in a wide range of industrial applications, from adhesives to coatings to composites.2. What Are Lithium-Ion Batteries?Lithium-ion batteries are rechargeable batteries that have become ubiquitous in modern electronic devices, including smartphones, laptops, and electric vehicles. They are so popular because of their high energy density, which enables them to store a lot of energy in a small space and deliver it efficiently.3. The Role of Polymer Binders in Lithium-Ion BatteriesOne of the key functions of a polymer binder in a lithium-ion battery is to help hold the active materials in place within the electrode. In other words, the polymer binder helps ensure that the electrode structure remains intact during the charge and discharge cycles of the battery. Additionally, the polymer binder can help improve the adhesion of the electrode to the current collector.4. Types of Polymer Binders Used in Lithium-Ion BatteriesThere are several types of polymer binders that are used in lithium-ion batteries. One of the most commonly used types is polyvinylidene fluoride (PVDF), which is a high-performance fluoropolymer that is known for its excellent mechanical properties and chemical resistance. Other types of polymer binders include polyacrylonitrile (PAN), carboxymethyl cellulose (CMC), and styrene-butadiene rubber (SBR).5. Impact of Polymer Binders on Battery PerformanceThe polymer binder can have a significant impact on the performance of the lithium-ion battery. For example, the choice of polymer binder can affect the mechanical strength, adhesion, and porosity of the electrode. Additionally, the polymer binder can impact the battery's cycling stability, rate capability, and capacity retention.6. Challenges with Polymer BindersHowever, there are also some challenges associated with using polymer binders in lithium-ion batteries. For example, the polymer binder must be able to withstand the chemical and electrochemical reactions that occur during the charge and discharge cycles. Additionally, the polymer binder must be compatible with the other materials used in the battery, including the electrolyte and the current collector.7. Innovations in Polymer Binder TechnologyScientists and engineers are constantly working to improve the performance of lithium-ion batteries through innovative materials and designs. One area of research is focused on developing new polymer binders that can improve the cycling stability and rate capability of the battery. Some of the promising innovations include the use of functionalized polymers, conductive polymers, and nanostructured polymer composites.8. Polymer Binders and SustainabilityAs the use of lithium-ion batteries continues to grow, there is increasing awareness of the importance of sustainability and environmental impact. One concern is the use of toxic solvents and chemicals in the production of polymer binders. However, there are efforts underway to develop environmentally friendly and sustainable polymer binders, such as those derived from natural sources like cellulose and chitosan.9. ConclusionPolymer binders are an essential component of lithium-ion batteries, helping to hold the active materials in place within the electrode and improving the battery's performance and lifespan. Although there are challenges associated with polymer binders, researchers are working to develop new and innovative solutions to overcome these obstacles and improve the sustainability of lithium-ion batteries.10. Related Long-Tail SEO KeywordsWhat is the role of polymer binders in lithium-ion batteries?How do polymer binders impact battery performance?Types of polymer binders used in lithium-ion batteriesChallenges with polymer binders in lithium-ion batteriesInnovations in polymer binder technology for lithium-ion batteriesAdvantages and disadvantages of polymer binders in lithium-ion batteriesThe importance of sustainable and environmentally friendly polymer binders for lithium-ion batteriesUnderstanding the chemistry of polymer binders in lithium-ion batteriesPolymer binders and their impact on the cost of lithium-ion batteriesThe future of polymer binders in lithium-ion batteriesQuote InquiryContact us

IntroductionCOMSOL and Ansys are two of the best simulation software available on the market today. These software packages provide users with powerful tools for analyzing a wide range of physical phenomena, such as structural mechanics, fluid dynamics, and electromagnetic fields.Both packages offer state-of-the-art simulation technologies, but how do they compare? In this article, we'll take a closer look at Which is better, COMSOL or Ansys?.1. User InterfaceThe user interface (UI) of a software package is one of the most important aspects of its overall design. It determines how easy the software is to use and how quickly new users can learn to use it. The UI of COMSOL is considered more intuitive and user-friendly than that of Ansys, making it a popular choice among new users.2. Simulation EfficiencyEfficiency is one of the most important factors when it comes to simulation software. In terms of speed and accuracy, Ansys is considered slightly better than COMSOL. Ansys's robust solvers and strength in parallel processing and distributed computing make it more efficient than COMSOL, which is a crucial factor for large and complex models.3. Planned ApplicationsIf you're a user with a specific application in mind, it may be worth researching which simulation software package is better suited for your intended use. For example, if your focus is on analyzing fluid flow, COMSOL is a better option. On the other hand, if your focus is on analysis in the field of mechanical or aerospace engineering, Ansys may be a better choice, as it can handle complex geometry quite well.4. Support and ResourcesWhen it comes to support and the availability of resources, both COMSOL and Ansys are well-supported packages. Both have large online communities where users can ask questions and find answers. COMSOL also provides extensive documentation and video tutorials. On the other hand, Ansys provides an extensive Knowledge Base while grouping in a user forum which also provides a support center for answering questions and providing resources to its users. 5. Learning CurveThe learning curve associated with any software package can be a significant consideration when deciding which tool to use. Both COMSOL and Ansys involve a considerable number of features and tools and learning them in-depth will take some time. However, as stated before, COMSOL offers a more intuitive UI, allowing new users to use the software with higher ease. 6. CustomizationThe ability to customize simulation software is priceless. A software package with a high level of customization may allow users to augment their model to procedures and achieve the exact outputs they are aiming for. COMSOL has the upper hand when it comes to customization, as it provides easy access to customize your model. 7. Stability and CompatibilitySimulations may take time running, being an error by no means is a desirable situation. To minimize this risk, both packages need to be stable. Stability also implies compatibility, which allows users to open their models in different versions of the same software. In regards to stability and compatibility, Ansys excels when compared with COMSOL. 8. Price ComparisonThe cost of licenses for simulation software is a significant expense. This fact yields cost a piece of significant consideration when selecting which tool suits the user's needs better. In comparison to Ansys, COMSOL is an inexpensive option for small companies and individual users. However, for large organizations or projects, Ansys licenses may make better financial sense overall. Price can also be a significant consideration when comparing packages that offer similar features and capabilities.9. User ExperienceUsers often report their experience with software after months of use. COMSOL is user-friendly, and many users have reported ease of use, particularly for new users who do not have a technical background. Ansys experiences a greater learning curve but has shown to attain the very same level of satisfaction from users with equally long hours of use time. 10. Final VerdictIt is difficult to determine which software package is objectively better, as it largely depends on the planned use of the software by each user and the technical expertise they bring with them. However, based on the comparisons above, it appears that Ansys is better suited for complex models and requires a workforce with significant knowledge in simulation procedures. On the other hand, COMSOL requires less technical knowledge, is more user-friendly, and is more likely to cater to a broader range of application needs.simulation software packages, physical phenomena, structural mechanics, fluid dynamics, electromagnetic fields, COMSOL, Ansys, simulation technologies, solvers, parallel processing, distributed computing, mechanicals, aerospace, engineeringWhich is Better, COMSOL or Ansys? A Comprehensive Comparison GuideIn this article, we'll take a closer look at which simulation package is better, COMSOL or Ansys? We'll compare both packages in terms of efficiency, user interface, simulations, price, and software stability. Quote InquiryContact us

As renewable energy gains popularity, lithium-ion batteries have become a critical component of powering everything from electric vehicles to home power storage units. Lithium-ion batteries have the ability to hold a large amount of energy, and they are rechargeable. One potential issue with these batteries, however, is the formation of dendrites. What are Dendrites?Dendrites are tiny, branch-like structures that form on the surface of a battery’s electrodes. These structures are made up of lithium that has separated from the electrodes, and they can grow over time. Dendrites can cause the battery to malfunction, and in some cases, they can be dangerous. How Do Dendrites Form in Lithium-Ion Batteries?Lithium-ion batteries rely on a chemical reaction between the anode and cathode. When the battery is charging, lithium ions move from the cathode to the anode. During discharge, the ions move back to the cathode. Over time, the repeated movement of ions can cause the formation of tiny cracks in the electrodes. These cracks provide a pathway for the lithium ions to travel through, which can result in the formation of dendrites. What Causes the Growth of Dendrites?Once the dendrites begin to form, they can continue to grow as more lithium ions are deposited on their surfaces. Dendrites can also grow more quickly when the battery is charged too quickly or discharged too rapidly. High temperatures can also increase the rate of dendrite growth. What are the Risks of Dendrite Formation?When dendrites grow too large, they can pierce the separator between the anode and cathode, causing a short circuit. This can result in the battery overheating, catching fire, or exploding. Dendrites can also lead to the formation of a solid-electrolyte interface (SEI) layer. This layer can block the flow of lithium ions and decrease the battery’s overall performance. How Can We Prevent Dendrite Formation?Preventing dendrite formation is critical to ensuring the long-term performance and safety of lithium-ion batteries. One way to prevent dendrites is to use a porous anode material that can absorb the lithium ions as they move through the battery. Another approach is to use a solid electrolyte that can prevent the growth of dendrites. Researchers are also exploring new electrode and electrolyte materials that can reduce the risk of dendrite formation. What Happens if Dendrites Form?If dendrites do form, there are a few potential solutions. One option is to use a separator that has a higher melting point. This can help to prevent the battery from overheating or catching fire if a short circuit occurs. Another solution is to use a coating on the electrodes that can help to reduce the growth of dendrites. How Can We Monitor Dendrite Formation?Monitoring dendrite formation is critical to identifying potential problems early on. One way to monitor dendrite growth is to use imaging techniques like electron microscopy. These techniques allow researchers to observe the growth of dendrites in real-time. What Are the Long-Term Implications of Dendrite Formation?If dendrites continue to form over time, they can reduce the battery’s ability to hold a charge. This can lead to the battery losing its ability to power a device for as long as it once did. In some cases, the dendrites can cause the battery to fail altogether. What Can We Learn From Dendrite Formation?Dendrite formation is an ongoing challenge for researchers and battery manufacturers. While dendrites can be dangerous, they also provide valuable insights into the inner workings of lithium-ion batteries. By understanding how dendrites form and how they impact battery performance, we can work to develop new materials and designs that can improve the safety and reliability of these critical energy storage devices. Quote InquiryContact us

The Basics of Electrodes in Lithium-ion BatteriesIf you own a phone or laptop, the battery powering it is probably a lithium-ion battery. These types of batteries are known for their long-lasting power, quick charging time, and excellent energy density. But have you ever wondered how they work? In this article, we'll explore the electrodes of a lithium-ion battery and how they contribute to its functionality. What is a Lithium-ion Battery?A lithium-ion battery is a rechargeable battery that uses lithium ions as a primary component of its electrochemistry. Lithium-ion batteries are commonly used in portable electronics, such as smartphones, tablets, and laptops. They are also present in electric vehicles, drones, and energy storage systems. The Anatomy of a Lithium-ion BatteryA typical lithium-ion battery consists of four main components: electrodes, electrolyte, separator, and current collectors. The two electrodes, anode, and cathode are the heart of the battery, where chemical reactions take place, generating energy. What are Electrodes?Electrodes are conductive materials that allow the flow of electrons in and out of the battery. In a lithium-ion battery, the anode is made of carbon, while the cathode is made of lithium and other metal oxides, such as cobalt, nickel, or manganese.Anode: Negative ElectrodeThe anode is considered the negative electrode, and it releases electrons when the battery discharges. The anode in a lithium-ion battery is made of a thin layer of graphite, allowing for the insertion and removal of lithium ions during charging and discharging. Cathode: Positive ElectrodeThe cathode is considered the positive electrode, and it gets charged with lithium ions during the battery's charging cycle. The cathode of a lithium-ion battery is typically made of a metal oxide, such as lithium cobalt oxide (LCO), lithium nickel cobalt aluminum oxide (NCA), or lithium manganese oxide (LMO).The Electrolyte: Lithium-ion Conductive MediumThe electrolyte is a lithium-ion conductive medium that facilitates the movement of lithium ions between the anode and cathode during the charging and discharging cycle. It is a liquid or gel-like substance that separates the electrodes and allows ions to move back and forth between them.The Separator: Keeping Electrodes SeparateThe separator is a thin porous plastic film that sits between the anode and cathode to keep them separate and prevent short circuits. The separator allows the lithium ions to move back and forth while preventing direct contact between the two electrodes. How do Electrodes Work in a Lithium-ion Battery?During the charging process, the lithium ions move from the cathode to the anode, where they are stored in the carbon. When you use the battery, the ions travel back to the cathode, where they react with the metal oxide, generating energy. The Future of Lithium-ion BatteriesLithium-ion batteries are continuously being improved, with research focused on making them more efficient, lightweight, and cheaper to manufacture. Researchers are investigating new electrode materials, such as silicon and lithium-sulfur, to increase the energy density and lifespan of these batteries. Quote InquiryContact us

A lithium-ion battery is a popular type of rechargeable battery that is widely used in various industries. Its high-energy density, low self-discharge rate, and long cycle life make it the preferred choice for electric vehicles, portable electronics, and stationary energy storage applications. But have you ever wondered what the positive pole material in a lithium-ion battery is? In this article, we will dive into the specifics of what the positive pole material is, why it is important, and how it affects the performance and characteristics of a lithium-ion battery.The Basics of a Lithium-Ion BatteryBefore we discuss the positive pole material of a lithium-ion battery, let’s first understand the basic components and principles of this type of battery. A typical lithium-ion battery consists of a negative electrode (anode), a positive electrode (cathode), a separator, and an electrolyte. When the battery is charged, lithium ions flow from the positive electrode to the negative electrode through the separator, which is usually a porous film that prevents the two electrodes from touching each other. When the battery is discharged, the lithium ions flow from the negative electrode to the positive electrode, generating an electrical current that can power a device. The energy storage capacity and performance of a lithium-ion battery depend on the materials used in its electrodes and electrolyte, as well as the design and manufacturing process.The Role of the Positive Pole MaterialThe positive pole material, also known as the cathode material, is one of the two electrodes in a lithium-ion battery. Its main function is to store and release lithium ions during charge and discharge cycles. The specific chemical composition and structure of the positive pole material determine its voltage, energy density, power density, and safety characteristics. Therefore, choosing the right positive pole material is crucial for the performance, reliability, and cost-effectiveness of a lithium-ion battery for a specific application. Some of the most commonly used positive pole materials in lithium-ion batteries are:Lithium Cobalt OxideLithium cobalt oxide (LiCoO2) is one of the first positive pole materials used in commercial lithium-ion batteries. It has a high specific energy density and stable cycling performance, but it is expensive and has some safety issues related to thermal stability and oxygen release. LiCoO2 is typically used in consumer electronics and medical devices that require high energy density and relatively low power.Lithium Manganese OxideLithium manganese oxide (LiMn2O4) is a less expensive and safer alternative to LiCoO2. It has a lower specific energy density but higher power density, making it suitable for applications that require high power and moderate energy, such as power tools and hybrid cars. It also has excellent thermal stability and good cycling performance but is prone to structural degradation and capacity fading over time.Lithium Iron PhosphateLithium iron phosphate (LiFePO4) is another popular positive pole material for lithium-ion batteries. It has a lower specific energy density than LiCoO2 but higher power density and thermal stability. It is also safer and more environmentally friendly than other positive pole materials, as it contains non-toxic and abundant elements. LiFePO4 is commonly used in electric vehicles, renewable energy systems, and backup power systems that require high power and safety.Lithium Nickel Manganese Cobalt OxideLithium nickel manganese cobalt oxide (LiNiMnCoO2), also known as NMC, is a versatile positive pole material that combines the advantages of LiCoO2, LiMn2O4, and LiNiO2. It has a high specific energy density, good power density, and excellent cycling performance. It is also less expensive than LiCoO2 and has a longer lifespan than LiMn2O4. NMC is used in a wide range of applications, from electric bikes and drones to grid-scale energy storage systems.Lithium Nickel Cobalt Aluminum OxideLithium nickel cobalt aluminum oxide (LiNiCoAlO2), also known as NCA, is a positive pole material that is similar to LiCoO2 in terms of energy density and voltage but has a higher thermal stability and lifespan. NCA is used primarily in electric vehicles and some consumer electronics that require high energy density and power, such as laptops and smartphones.ConclusionIn summary, the positive pole material in a lithium-ion battery plays a critical role in its performance, safety, and cost. The choice of positive pole material depends on the specific application requirements and trade-offs between energy density, power density, thermal stability, lifespan, and cost. Some of the most common positive pole materials in lithium-ion batteries include lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate, lithium nickel manganese cobalt oxide, and lithium nickel cobalt aluminum oxide. Choosing the right positive pole material is an important factor in maximizing the efficiency and reliability of lithium-ion batteries.Quote InquiryContact us

Backgrounds:In recent years, due to issues such as nuclear power plants, increased awareness of environmental issues, and electricity liberalization, we have begun to hear more and more frequently about how to save electricity and other power-related information. Among them, it is a typical term often seen in electricity-related fields.What is a Virtual Power Plant (VPP)?Virtual power plant (VPP) refers to power generation equipment such as renewable energy and fuel cells, storage battery equipment that efficiently stores and uses electricity, and consumers (demanders) such as homes and factories that consume electricity, and refers to centralized control, specific areas. It can be said to be a smart city concept that expands the scale of so-called smart homes. It is called a virtual power plant because it is like a virtual power plant in which all equipment, including power generation and storage, is controlled within a certain area.What are the benefits of VPP?Basically the same concept as the smart home (installing a household battery, etc.), and has the following advantages. For example, if electricity demand exceeds supply during a time when everyone uses a lot of electricity, such as during the day, demand response can be used to request power savings and reduce demand. On the other hand, during periods of abundant power supply, the generated power can be used more efficiently by storing it in storage batteries in the area, so that too much power is not wasted.Moreover, what makes it more attractive than smart homes is that it can introduce renewable energy sources, such as solar power plants and wind power plants, which can only be introduced using a certain amount of land, making it more renewable.Similarly, by integrating battery equipment over a considerable area of land, it can be said that it is conducive to improving the efficiency of electricity storage and taking safety measures in advance. Currently, VPP is in the early stages of demonstration testing, so there are many challenges to its widespread use, but it can be said that VPP is very attractive because of its potential to contribute to the environment and bring savings.

On June 26, according to foreign media reports, due to unsatisfactory energy density and charging performance, and higher costs, Tesla is considering stopping the production of 4680 batteries at the Giga Texas factory in Texas. If the cost reduction does not achieve the expected effect by the end of the year, Tesla will abandon 4680 battery production and turn to external suppliers.Review the road to the Tesla 4680Four years ago, in 2020, Tesla launched a 4680 large cylindrical lithium-ion battery on its battery Day. Compared with the 2170 cylinder battery, the battery size is larger, the use of non-polar ear technology, the single capacity is higher, and the production cost of the battery can be effectively reduced.Look at a set of data: in the Q4 of 2023, Tesla's financial report shows that Tesla invested $3.969 billion (about 28.8 billion yuan) in research and development throughout the year. In Q4 alone, it spent $1.094 billion (about 7.95 billion yuan), an increase of 35% over the same period last year, which is the highest research and development investment in Tesla's history.By the Q1 of 2024, Tesla's earnings conference showed that the production efficiency of 4680 was only 18%-20% higher than that of Q4.This is the performance of the Tesla 4680 mass production efficiency encountered bottleneck.Reasons for abandoning 4680It is understood that the dry coating technology of the battery electrode that the 4680 battery initially promised to use and can greatly improve the production efficiency has not yet been successfully realized. In the nearly four years since the Tesla 4680 battery was released in 2020 to the present, Ningde Times, BYD and other companies have reduced the battery cost to 0.4 yuan /Wh. As a comparison, it is reported that the cost of manufacturing 4680 batteries may still be in the range of 0.8-1 yuan /Wh, which is more than twice the battery of Ningde era and BYD. In addition, the safety, cycle life and charging speed of the Tesla 4680 battery are weaker than mainstream batteries. The 4680 battery can no longer become Tesla's cost reduction and quality improvement in the short term.Tesla has freed up a lot of battery space On the one hand, Tesla hopes that through the new technology of 4680 large cylinder batteries, electric vehicle batteries can store more energy, last longer, and be cheaper, and eventually be used in Tesla's full range of electric vehicle products, including electric trucks and electric sports cars. On the other hand, Tesla also hopes that by using lithium iron phosphate materials, the 4680 cylinder battery will be applied to the energy storage field with broad market prospects and is expected to exceed automobile production in the future."Our long-term goal is to produce more than 1,000 GWH of batteries inside Tesla," Musk said in response to an investor's question. Today, assuming Tesla no longer produces 4680 batteries, about 1,000 GWH will become Tesla's demand for batteries. Japan's Panasonic, South Korea's LG New Energy, Samsung SDI, are producing or will soon produce 4680 batteries. There are also quite a number of enterprises in China that are producing or will soon produce 4680 batteries, including Ningde Times, Bic Battery, Billion Wei Lithium Energy, Zhongchuang New Aviation, Rupu Lanjun and so on. It can be expected that there will be more power battery companies that will soon enter the list of Tesla battery suppliers!