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    • 9. 发明公开
    • LITHIUM CELL WITH IRON DISULFIDE CATHODE AND IMPROVED ELECTROLYTE
    • 锂离子电池与铁离子二硫化物阴极和改进的电解液
    • EP2380229A1
    • 2011-10-26
    • EP10700662.9
    • 2010-01-14
    • The Gillette Company
    • SLIGER, Michael, DeanISSAEV, Nikolai, NikolaevichNAVOK, EricYELM, Kenneth, Edward
    • H01M6/16H01M4/58H01M4/62H01M4/66
    • H01M6/168H01M4/5815H01M4/625H01M4/661H01M6/164H01M6/166H01M2300/0037
    • A primary cell having an anode comprising lithium and a cathode comprising iron disulfide (FeS2) and carbon particles. The electrolyte comprises a lithium salt dissolved in a solvent mixture which contains 1,3-dioxolane and isosorbide dimethyl ether. The solvent mixture may comprise 1,3-dioxolane, 1,2-dimethoxyethane and additive isosorbide dimethyl ether. The isosorbide dimethyl ether comprises typically between about 2 and 15 percent by weight of the solvent mixture and improves cell service life and performance. A cathode slurry is prepared comprising iron disulfide powder, carbon, binder, and a liquid solvent. The mixture is coated onto a conductive substrate and solvent evaporated leaving a dry cathode coating on the substrate. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added.
    • 具有包含锂的阳极和包含二硫化铁(FeS 2)和碳颗粒的阴极的原电池。 电解质包含溶解在含有1,3-二氧戊环和异山梨醇二甲醚的溶剂混合物中的锂盐。 溶剂混合物可以包含1,3-二氧戊环,1,2-二甲氧基乙烷和添加剂异山梨醇二甲醚。 异山梨醇二甲醚通常占溶剂混合物的约2-15重量%,并且改善电池使用寿命和性能。 制备包含二硫化铁粉末,碳,粘合剂和液体溶剂的阴极浆料。 将该混合物涂布到导电基材上并蒸发溶剂,在基材上留下干阴极涂层。 阳极和阴极可以螺旋缠绕在其间的隔膜上,然后加入电解质并插入电池外壳中。