The traditional liquid lithium electricity is not power battery technology end point. It is well known that the energy density is the first power battery performance indicators, along with the electric vehicle market by & other; Policy driver & throughout; To & other; Policy approach throughout the &; Conversion, policy for lithium battery energy density ascension guidance is clear. The ministry indicated: & other; By 2025, 2030, our country power battery monomer energy density of about 400 wh/kg respectively, 500 wh/kg” The technique index is close to the traditional lithium battery energy density of the ceiling. On energy and safety performance, and huge room to improve current lithium battery technology, the traditional liquid battery will never be the end of technology.
solid-state batteries is the lithium electricity era path. Solid-state batteries refers to using solid electrolyte of lithium ion batteries. Performance, not burning solid electrolyte is the core of solid-state batteries. Solid-state batteries in the eradication of safe hidden trouble at the same time can bring the ascension of the battery energy density. Development difficulty, lithium sulfur, lithium-air battery needs, from the perspective of the whole cell structure, and the core of solid-state batteries is a solid electrolyte, upgrade path is more easy and convenient. In addition, the lithium sulfur, use lithium metal lithium battery cathode are empty, and lithium metal anode are more likely to be compatible in the solid electrolyte, so solid state lithium battery and lithium sulfur, the transition of empty battery platform. Throughout the future direction of technology, solid-state batteries has become a rite of passage, as the nearest next-generation battery technology has become the consensus of the scientific community and industry.
at early industrialization, the future is expected to speed development. Solid electrolyte of low ionic conductivity and high interfacial impedance limits the energy density and the ratio of the battery performance, at present, the products have not enough mature market. According to the selection of electrolyte materials, solid-state batteries can be divided into three categories: polymer system technology the most mature, but the performance limit restrict development; Oxide system the problem for the thin film battery capacity expansion and large-scale production, excellent comprehensive performance instead of the thin film battery, is the current development of the popular; Sulfide system is in a huge development space and polarized situation of the technology is not mature. Taken together, although each kind of solid-state batteries system has more pressing problem need to overcome, but the performance of current laboratory products have considerable potential, and capital to anoint and worldwide leading car companies under various layout, solid state battery technology are expected to get a speeding development.
step-by-step arrangement in penetration, stage development way is clear. Looking forward to the future, solid-state batteries will follow the route of development stages, step-by-step, technical application on phase permeability. The structure of the battery will gradually reduce the use of liquid, no liquid to solid-state batteries; Applications, is expected to take the lead in giving full play to the advantages of security and flexible, applied to the sensitivity to the cost of the smaller micro batteries, such as RFID, implantable medical devices, wireless sensor, etc. ; As technology advances, then gradually to the high-end consumer electronics penetration; And wait for the product is mature enough, eventually cut into the energy storage market, implement a full-blown downstream demand.