Additives for improving the ionic conductivity of lithium-ion battery electrodes

改进锂离子电池电极的离子电导率的添加剂

Abstract

The invention claimed relates to an electrode material, preferably a positive electrode material, for a lithium-ion battery, to the method of preparing same, and to a lithium-ion battery incorporating said electrode material. This composite electrode material comprises: - an electronically conductive additive, such as carbon; - an active material that is an oxide, a phosphate, a fluorophosphate or a silicate of lithium; - a polymer binder such as PVDF; and - an organic salt corresponding to defined chemical formulae, for example LiPDI, LiTDI, LiPDCI, LiDCTA, LiFSI, LiTFSI, optionally as a mixture. The organic salt makes it possible to increase the ionic conductivity of the electrode.
本发明涉及用于锂离子电池的电极材料、优选正极材料,该材料的制备方法,以及加入所述电极材料的锂离子电池。该复合电极材料包括:-电子导电添加剂,如碳;-活性材料,其为锂的氧化物、磷酸盐、氟代磷酸盐或硅酸盐;-聚合物粘合剂,如PVDF;以及,对应于限定的化学式的有机盐,所述化学式例如为LiPDI、LiTDI、LiPDCI、LiDCTA、LiFSI、LiTFSI,任选地作为混合物。该有机盐使得可提高电极的离子电导率。

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    Publication numberPublication dateAssigneeTitle
    CN-106008262-AOctober 12, 2016武汉海斯普林科技发展有限公司Preparation method of 4,5-dicyan base-2-trifluoro-methylimidazole and prepared intermediate and salt thereof