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    • 6. 发明申请
    • ACTIVE MATERIAL FOR NON-AQUEOUS-SYSTEM SECONDARY BATTERY AND NON-AQUEOUS-SYSTEM SECONDARY BATTERY
    • 非水系统二次电池和非水系统二次电池的活性材料
    • US20110285353A1
    • 2011-11-24
    • US13145056
    • 2010-01-06
    • Junichi NiwaHitotoshi Murase
    • Junichi NiwaHitotoshi Murase
    • H02J7/00H01M4/36
    • H01M4/582H01M4/136H01M4/364H01M4/388H01M10/0525
    • An active material for non-aqueous-system secondary battery according to the present invention is characterized in that it comprises a mixture of an alkali metal salt and a transition metal, and it carries out reversible oxidation-reduction by means of charging-discharging, oxidation-reduction in which an alkali metal is eliminated from a compound being made by reacting the alkali metal salt with the transition metal, and oxidation-reduction in which the alkali metal salt and the transition metal are reproduced from the compound into which the alkali metal has been inserted. It becomes feasible to make a non-aqueous-system secondary battery exhibit a higher capacity by using this active material for the non-aqueous-system secondary battery. Moreover, since the active material for non-aqueous-system secondary battery according to the present invention includes an alkali metal that works as electrolyte ions, another active material that is used for the counter electrode is not limited. For example, in a lithium-ion secondary battery, the safety upgrades because it is possible to forgo employing electrodes that include metallic lithium.
    • 本发明的非水系二次电池用活性物质的特征在于,其包含碱金属盐和过渡金属的混合物,并通过充放电,氧化进行可逆的氧化还原 - 从碱金属盐与过渡金属反应制得的化合物中除去碱金属的还原反应,碱金属盐和过渡金属从其中碱金属盐的化合物再生而进行的氧化还原 被插入。 通过将该活性物质用于非水系二次电池,使非水系二次电池呈现较高的容量变得可行。 此外,由于根据本发明的非水系二次电池用活性物质包括作为电解质离子使用的碱金属,所以用于对电极的活性物质不受限制。 例如,在锂离子二次电池中,由于可以放弃使用包含金属锂的电极,因此能够进行安全性的升级。