What is the difference between polymer lithium ion battery and liquid lithium ion battery?

Polymer batteries are different from liquid lithium ion batteries. Due to the different production processes of major lithium ion battery manufacturers, lithium polymer batteries on the market are divided into two different structures: winding structure (represented by SONY and Toshiba) and laminated structure (Represented by TCL and ATL). However, the specifications of most mobile phones are below 4mm. Compared with liquid, this polymer is wrapped in a thinner aluminum film, thinner than steel or aluminum, and is produced in a different way from liquid lithium-ion batteries. The thinner the polymer, the better. In theory, batteries with a thickness of less than 0.5mm can be produced. Liquid lithium is just the opposite. The thicker the better, the more difficult it is to produce a battery less than 4mm thick. Even in production, the output is significantly smaller than that of lithium polymer, and there is no cost advantage. Therefore, the thinner the battery, the lower the polymer production cost, and the higher the liquid production cost. In the thicker specifications, the liquid lithium-ion battery supply chain is mature, the technology is mature, the production efficiency is high, the output is high, and the manufacturing cost advantage is strong. According to the current market situation, the 5mm and 6mm thick liquid lithium-ion battery series are much higher than the 3mm and 4mm thick battery series, but the price is much lower. Theoretically, the material cost of 5mm and 6mm thickness specifications is related to liquid. However, the current processing cost of 5mm and 6mm batteries is much higher than that of liquid batteries. Therefore, it is necessary to form a liquid of this specification. There are many distances. Ordinary lithium-ion batteries have three important structures: positive electrode, negative electrode and electrolyte. The so-called polymer lithium ion battery means that at least one or more of the three important structures uses polymer materials as an important battery system. In the current lithium ion polymer battery system, polymer materials are mainly used for cathodes and electrolytes. The negative electrode material includes conductive polymers or inorganic compounds used in lithium ion batteries. The electrolyte can be a solid or colloidal polymer electrolyte or an organic electrolyte. The cathode material usually adopts lithium metal or lithium carbon intercalation. Generally speaking, lithium ion technology uses liquid or colloidal electrolytes, so a strong secondary packaging is required to contain flammable active ingredients, which adds weight and cost, and limits size flexibility. The lithium polymer process has no excess electrolyte, so it is more stable and less prone to damage due to overcharging, needle sticks, collisions, and overuse. The new generation of polymer lithium-ion batteries can be made into a thinner shape (the thinnest is 0.8mm), any size and shape are available, greatly increasing the flexibility of battery design, and can be made according to product requirements. With any shape and capacity of the battery, it provides application equipment developers with a high degree of design flexibility and adaptable power solutions to maximize their product performance. At the same time, polymer lithium-ion batteries have 50 inches more energy per unit than current lithium-ion batteries. Its capacity, charge and discharge characteristics, safety, operating temperature range, cycle life (more than 500 times) and environmental performance are greatly improved compared to lithium-ion batteries. Lithium-ion battery energy storage technology integrates more renewable energy in the energy storage market, and there are stable lithium-ion battery technology transactions almost every quarter. In addition, a considerable amount of funds have entered the energy storage system. A new report from research firm MerccomcapitalGroup shows that battery storage companies raised US$1.4 billion in venture capital in the first half of 2019, up from US$543 million in the same period last year. Most of the record numbers came from this transaction, in which North Volt raised $1 billion for a 16 kWh project. Prabhu, chief executive officer of MercomCapitalGroup, said that with the rise in the industry and the decline in costs, battery companies have continued to increase their venture capital for the third year. As venture capital from battery storage companies increases, battery technology is receiving more and more attention. Battery technology can integrate more renewable energy sources and may replace a large number of fuel-powered vehicles nationwide. Prabbe said that we started tracking these data in 2014, and the 1.4 billion US dollars in the first half of this year was unprecedented. Many oil and gas companies and utility companies are investing heavily in projects such as battery storage, smart grids, and energy efficiency companies. Utilities invest to understand the technology and possible future acquisitions, Prabhu explained. Oil and gas companies are also seeking to enter the field of renewable energy. Data shows that most of the investment in battery storage comes from the United States and Europe. Although battery storage is rising rapidly in the Chinese market, the channels for obtaining venture capital are not smooth. Earlier this year, Zhang Jing, secretary general of the Zhongguancun Energy Storage Industry Technology Alliance, said: my country's energy storage industry has just started. We want a financing platform for innovative companies in the energy storage industry to complete the combination of technology, products and funds, which is crucial to the next development of my country's energy storage industry. Although the domestic energy storage market is a newly cultivated vast wasteland, now foreign energy storage businesses can deploy more space. Attracted by the trillion-dollar energy storage market, BYD's energy storage containers were exported to Brazil for the first time this year, and another 22 containers were exported to the UK. The company signed a 100MWh battery energy storage system cooperation plan with Mexico. CNP Taizhou Technology Co., Ltd. is based on the current energy storage market, focusing on the research and development of energy storage systems, actively exploring overseas markets, and has reached cooperation with Canada, the United States, Lebanon and other countries. 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