Solid Metal Lithium Battery Research And Development Forty Anniversary Results And Future

- Dec 26, 2016 -

Since Sony Corp first commercialized lithium-ion batteries in 1991, lithium-ion batteries have been widely used in portable electronic equipment, electric vehicles and power grid applications. Although lithium ion batteries have been in the business world has achieved great success and become an indispensable part in our daily life, however, its development status has been in the rapid development of stagnation and backwardness in electronic technology. Many emerging applications are in urgent need of batteries with higher energy density than existing lithium-ion batteries. Solid state lithium metal batteries are widely recognized as one of the most promising technologies. 1978, Michel Armand reported the first solid metal lithium battery research. At the same time (1977), Chen Liquan in Germany with Werner Weppner carried out research related to lithium ion conductors. 1978, Chen Liquan returned to China, initiated and advocated the first solid metal lithium battery research and basic research related to solid state ion.

Solid state lithium battery is a new generation of batteries, at that time aroused great concern around the world. The fast ion conductor capable of transferring lithium is the key material for producing this kind of battery. Li3N crystal in the A-B surface of lithium ion conductivity is very high (room temperature of 1.2 x 10-3 S/cm), but its decomposition potential is very low, so it was realized that Li3N can not be used in solid lithium battery electrolyte materials. At that time, the ionic conductivity of lithium ion conductor is very low, so it is urgent to develop new lithium ion conductor. Chinese Academy of Sciences "65" and "" (1980-1990) successively fast ion conductor and solid state battery as key issues. Ministry of science and technology in 1987, the first 863 plan will also be solid lithium batteries as a major topic.

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