What are the important advantages of solid-state lithium-ion batteries?

Advantages of solid-state lithium-ion batteries ①Solid-state lithium-ion batteries have a lot of benefits. Because solid electrolytes are non-flammable, non-corrosive, non-volatile, and non-leakage, they will not cause spontaneous combustion events in vehicles, which greatly enhances peace. Sex is simply an aspirational material for electric vehicle batteries. ②Because the traditional lithium-ion battery with organic electrolyte is recycled, it is easy to cause electrolyte fever under abnormal environment such as overcharging, internal short circuit, etc., thereby triggering the hidden danger of spontaneous combustion or even self-explosion. Solid-state batteries are based on the conditions of non-flammability, non-corrosion, non-volatile, and non-leakage of solid materials, and their safety factors have inherent advantages over lithium-ion batteries. ③The lithium-ion battery under the current system is close to the limit function, that is, the battery pack under the Tesla NCA18650 cell. The energy density can reach 250 Wh/kg, and the energy density of the 21700 cell used in Model 3 can reach 300 Wh. /Kg, supporting a continuous flight mileage of 400 to 500 kilometers, still can not handle the cruising mileage anxiously. The electrolyte of solid-state batteries does not require barriers and electrolytes, and does not have problems such as leakage or corrosion. It can simplify the battery casing and cooling system modules, further reduce the weight of the battery modules, and achieve energy-saving results. In addition, the new positive and negative materials can make the electrochemical window reach more than 5V, and increase the energy density from the foundation, which is expected to reach 500 watt-hours/kg. At present, the ternary lithium-ion battery packs commonly used in mainstream electric vehicles actually have inevitable defects, because ternary lithium materials are prone to fever regardless of the chemical layout or the battery layout. If the pressure cannot be transmitted in real time, the battery will explode. The several spontaneous combustion incidents of electric vehicles this year are also due to this. And in terms of endurance, the single energy density of ternary lithium-ion battery packs is currently facing a bottleneck, which is difficult to break. If you want to increase the energy density, you can only increase the content of nickel and possibly add CA, but the thermal stability of high nickel is very poor, and it is easy to show a violent response. Therefore, at present, we can only make a trade-off between battery capacity and safety. Even though Toyota, which is often good at technology and technology research and development, also hints that solid-state batteries will not be mass-produced until 2030, which shows that the development of solid-state batteries still has departmental difficulties. In fact, since solid-state batteries do not require liquid infiltration and only require solid electrolytes to separate the positive and negative plates, the choice of metal materials becomes very critical. The biggest challenge of this technology today is that the overall conductivity of the solid electrolyte is lower than that of the liquid electrolyte, which leads to the overall low rate function of the current solid-state battery and large internal resistance, so the solid-state battery temporarily cannot be satisfied with fast charging. Claim. Nowadays, the Ru0026D skills of ternary lithium-ion battery packs of companies led by Panasonic and CATL are already superb. Even if solid-state lithium-ion batteries are developed in a short period of time, it is difficult to achieve mass production. After all, when a new skill goes to the world, it is always necessary for the company to have the corresponding product volume and output capacity in order to achieve large-scale promotion and application. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: What are the key points for the Act on Active Equalization of Lithium-ion Battery Pack Charging?