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An overview of the lithium battery electrolyte industry
Lithium battery industry: basic facts
The lithium battery has a rich history in its application and development as an electrochemical energy storage device. n methyl 2 pyrrolidone solvent Initially, different metal lithium was used as the negative electrode, but due to safety concerns and difficulties with the charging process, it was primarily used as a disposable battery. However, in the early 1990s, SONY successfully introduced graphite as a negative electrode and commercialized the rechargeable lithium-ion battery system. Compared to other chemical energy storage batteries, lithium batteries offer superior performance in terms of energy density, power density, life cycle and safety. As such, they have become increasingly prevalent in various electronic information products, power tools, transportation vehicles and energy storage systems.
During the initial stage of lithium-ion battery development, nmp chemical the technology opened doors for new downstream applications. Japanese companies such as Sanyo, Panasonic, and SONY held a monopoly due to their technological leadership and well-established global market industry chain. The period from 2001 to 2010 saw a rapid growth in consumer electronics, specifically mobile phones and MP3 players, which increased the demand for lithium-ion batteries. During this time, the pace of innovation among Japanese companies slowed down, resulting in technology being transferred to other East Asian countries. As China joined the World Trade Organization in 2001, there was a gradual shift towards manufacturing in China, leading to the rise of promising Chinese companies specializing in lithium-based materials. This helped China localize key components required for its growing lithium-ion battery industry. From 2011 to 2019, as consumer demand for lithium-ion batteries decreased with slower growth in smartphone and tablet shipments, the power market became a key focus for global lithium-ion battery companies. Chinese companies also experienced significant growth during this period by providing high-quality products to meet the needs of downstream customers. As a result, our Chinese lithium-ion battery industry has seen a substantial increase in global market share.
Lithium-ion batteries compared with other secondary batteries
An overview of the lithium battery electrolyte industry
The main components of lithium-ion batteries include electrolyte, diaphragm, positive electrode material, and negative electrode material. The electrolyte is a crucial material in the production of lithium batteries, serving as the medium for lithium ion movement and charge transfer. It is often referred to as the "blood" of these batteries. As a carrier of lithium ions, it plays a vital role in transporting them during the charging and discharging process. This requires extremely high ionic conductivity and minimal electronic conductivity. To prepare the electrolyte, high purity organic solvents, electrolyte lithium salts, and necessary additives are mixed in specific proportions under certain conditions. This ensures that the battery can achieve high voltage and energy efficiency. The purification of raw materials and environmental control are significant challenges in the production process due to the strict requirements for the purity, moisture level, and acid content of lithium salts, solvents, and additives used in the electrolyte.
Electrolyte composition (Figure)
The repeated occurrence of side reactions during battery cycle development can impact the stability of the circulation system in researching batteries. As we know, the stability of the circular economy is directly tied to the battery's capacity retention rate during charge and discharge cycles. Therefore, it is crucial to analyze and improve the electrolyte by incorporating food additives. Although relatively inexpensive, the electrolyte plays a significant role in the performance of lithium batteries. It affects key technical characteristics such as high voltage capabilities, charging and discharging rates, cycle life, and safety. Some indicators to consider for electrolytes include conductivity, decomposition voltage, usable temperature range, and safety. High conductivity allows for faster conduction of lithium ions, resulting in improved charging and discharging efficiency. With a higher decomposition voltage, cathode materials can be produced to increase energy density in batteries. A wide temperature range for electrolytes ensures optimal performance in both high and low temperatures. The flammability of the electrolyte remains a major concern for safety in lithium-ion batteries, particularly those used for education purposes. For this reason, a safe electrolyte is essential to ensuring good social security and stable performance in lithium-ion batteries overall.
In the lithium battery electrolyte industry in China, import dependence, domestic substitution, and internationalization have all been experienced. With the continuous development, the performance of lithium battery electrolytes produced by Chinese enterprises has gradually improved, which has been widely recognized by the industry, and the domestic speed has steadily increased, and the product has gradually moved to the international market.
Chinese lithium battery electrolyte industry development history
The variation in electrolyte products is mostly seen in the composition of regulators and enhancement of additives. As safety, charge-discharge ratio, cycle life, and high pressure continue to improve, the complexity and type of additives used also increase. Each additive and formulation is tailored to meet the specific requirements of our clients and must be compatible with other battery materials. This requires a thorough understanding of the battery material system. The process of researching and developing new additives involves trial and error, particularly when preparing them. This not only requires substantial resources but also incurs high costs due to the need for specialized reagents, long preparation times, and purification difficulties. Thus, there is a significant investment and risk involved in the development of new additives.
An overview of the lithium battery electrolyte additives industry
Lithium battery electrolyte additives are highly valued for their ability to improve various safety aspects of the electrolyte. With a wide range of products and a small mass ratio in the electrolyte, these additives utilize directional technology to optimize electrical conductivity, flame retardant material performance, overcharge protection, and rate performance. As different types of batteries continue to evolve in China with a focus on energy, power, circulation, and safety, the role of additives has become increasingly crucial. In fact, it can be said that the development and use of additives will be a key factor in determining the competitive edge of electrolyte companies.