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    • 2. 发明申请
    • PROCESS FOR PRODUCING LITHIUM VANADIUM PHOSPHATE-CARBON COMPOSITE
    • 用于生产磷酸氢钙 - 碳复合材料的方法
    • US20130214462A1
    • 2013-08-22
    • US13823612
    • 2011-09-22
    • Tsutomu KikuchiKazuki TakimotoHideo Yanagita
    • Tsutomu KikuchiKazuki TakimotoHideo Yanagita
    • H01M4/1397
    • H01M4/1397C01B25/45H01M4/04H01M4/13H01M4/136H01M4/5825H01M4/625H01M10/0525Y02E60/122Y02P70/54Y02T10/7011
    • A process for producing a lithium vanadium phosphate-carbon composite includes a first step that includes mixing a lithium source, a tetravalent or pentavalent vanadium compound, a phosphorus source, and a conductive carbon material source that produces carbon through pyrolysis, in an aqueous solvent to prepare a raw material mixture, a second step that includes heating the raw material mixture to effect a precipitation reaction to obtain a reaction mixture that includes a precipitate, a third step that includes subjecting the reaction mixture that includes the precipitate to wet grinding using a media mill to obtain a slurry that includes ground particles, a fourth step that includes spray-drying the slurry that includes the ground particles to obtain a reaction precursor, and a fifth step that includes calcining the reaction precursor at 600 to 1300° C. in an inert gas atmosphere or a reducing atmosphere. A lithium vanadium phosphate-carbon composite produced by the process may provide a lithium secondary battery with excellent battery performance (e.g., high discharge capacity) when used as a cathode active material.
    • 一种制备锂钒磷酸盐 - 碳复合材料的方法包括第一步骤,其包括在水性溶剂中将锂源,四价或五价钒化合物,磷源和通过热解产生碳的导电碳材料源混合至 制备原料混合物,第二步骤包括加热原料混合物进行沉淀反应以获得包含沉淀物的反应混合物,第三步骤包括使用介质对含有沉淀物的反应混合物进行湿磨研磨 研磨以获得包括研磨颗粒的浆料,第四步骤包括喷雾干燥包含研磨颗粒的浆料以获得反应前体,第五步包括在600至1300℃下煅烧反应前体, 惰性气体气氛或还原气氛。 通过该方法生产的锂钒磷酸铁复合物可以提供当用作阴极活性材料时具有优异的电池性能(例如,高放电容量)的锂二次电池。
    • 4. 发明授权
    • Process for producing lithium vanadium phosphate-carbon composite
    • 生产锂钒磷酸盐 - 碳复合材料的方法
    • US09437866B2
    • 2016-09-06
    • US13823612
    • 2011-09-22
    • Tsutomu KikuchiKazuki TakimotoHideo Yanagita
    • Tsutomu KikuchiKazuki TakimotoHideo Yanagita
    • H01M4/1397H01M4/13H01M4/58C01B25/45H01M4/04H01M4/136H01M10/0525H01M4/62
    • H01M4/1397C01B25/45H01M4/04H01M4/13H01M4/136H01M4/5825H01M4/625H01M10/0525Y02E60/122Y02P70/54Y02T10/7011
    • A process for producing a lithium vanadium phosphate-carbon composite includes a first step that includes mixing a lithium source, a tetravalent or pentavalent vanadium compound, a phosphorus source, and a conductive carbon material source that produces carbon through pyrolysis, in an aqueous solvent to prepare a raw material mixture, a second step that includes heating the raw material mixture to effect a precipitation reaction to obtain a reaction mixture that includes a precipitate, a third step that includes subjecting the reaction mixture that includes the precipitate to wet grinding using a media mill to obtain a slurry that includes ground particles, a fourth step that includes spray-drying the slurry that includes the ground particles to obtain a reaction precursor, and a fifth step that includes calcining the reaction precursor at 600 to 1300° C. in an inert gas atmosphere or a reducing atmosphere. A lithium vanadium phosphate-carbon composite produced by the process may provide a lithium secondary battery with excellent battery performance (e.g., high discharge capacity) when used as a cathode active material.
    • 一种制备锂钒磷酸盐 - 碳复合材料的方法包括第一步骤,其包括在水性溶剂中将锂源,四价或五价钒化合物,磷源和通过热解产生碳的导电碳材料源混合至 制备原料混合物,第二步骤包括加热原料混合物进行沉淀反应以获得包含沉淀物的反应混合物,第三步骤包括使用介质对含有沉淀物的反应混合物进行湿磨研磨 研磨以获得包括研磨颗粒的浆料,第四步骤包括喷雾干燥包含研磨颗粒的浆料以获得反应前体,第五步包括在600至1300℃下煅烧反应前体, 惰性气体气氛或还原气氛。 通过该方法生产的锂钒磷酸铁复合物可以提供当用作阴极活性材料时具有优异的电池性能(例如,高放电容量)的锂二次电池。