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Characteristics of lithium salts that meet the performance requirements of lithium ion battery

Return Listsource:Gratene date: 2022-06-17

Characteristics of lithium salts that meet the performance requirements of lithium ion batteryAlthough there are many kinds of lithium salts, the lithium salt suitable for lithium batteries is very limited. Common lithium salt with small radius of anionic radius<如LiBr等)尽管价格低廉,但由于溶解度差等原因不适用于锂电池电解液,从实际需要出发,满足锂离子电池需要性能优良的锂盐应具有以下特性 : A, the lithium salt has a sufficiently high solubility in the organic mission, the degree is small, easy to dissociate to ensure higher electrical conductivity of the electrolyte; B, the anion has high oxidation and reduction stability, in the electrolyte The stability is good, the reduction product is conducive to the formation of the electrode passivation film; C, which has good environmental affinity, decomposing products have less affected environment; D, easy to prepare and purify, low production cost.
The lithium salt commonly used in laboratory and industrial production is generally selected from a lithium salt having a large, oxidation and reducing reducibility in the anionic radius to allow the above characteristics. Lithium salt commonly used in lithium ion batteries can be divided into inorganic lithium salts and organic lithium salts, and inorganic salts are mainly LiciOi, LiPF6, LIASF and LIBF4, IAC14, Liscn, Litaf6, Lisnf6, IgEF and new hybrid salts. Report. Organic lithium salts mainly include Licf3SO3, Lin (Solcf3) and their derivatives, etc., and new lithium salts that are recently developed. 

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