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    • 1. 发明申请
    • ACTIVE ELECTROCHEMICAL MATERIAL AND PRODUCTION OF SAME
    • 活性电化学材料及其生产
    • US20160204420A1
    • 2016-07-14
    • US14911760
    • 2014-06-12
    • VARTA MICRO INNOVATION GMBH
    • Stephania ToulisMichaela ScharfeggerHarald KrenStefan Koller
    • H01M4/36H01M4/62H01M4/04H01M10/052H01M4/38H01M4/587
    • H01M4/587H01M4/0471H01M4/1393H01M4/1395H01M4/366H01M4/386H01M4/625H01M10/052
    • A process of producing active material for an electrode of an electrochemical cell includes a buildup step A in which a pulverulent composite composed of lithium-intercalating carbon particles as component 1, silicon particles as component 2 and a polymer that can be pyrolyzed to form amorphous carbon as component 3 is formed, and a pyrolysis step B in which the composite is heat treated in the absence of atmospheric oxygen at a temperature at which the pyrolyzable polymer decomposes to form amorphous carbon, wherein the lithium-intercalating carbon particles are transferred in the buildup step A into a fluidized-bed reactor and coated with a shell composed of the polymer and the silicon particles to effect direct formation of the pulverulent composite, and the polymer that can be pyrolyzed to form amorphous carbon or a corresponding polymer precursor and/or the silicon particles are fed into the fluidized-bed-reactor as solution or suspension.
    • 制造电化学电池用电极用活性物质的工序包括:堆积工序A,其中由作为成分1的锂嵌入碳粒子构成的粉状复合体,作为成分2的硅粒子和能够被热分解形成无定形碳的聚合物 作为组分3形成的热解步骤B,其中在可热分解的聚合物分解的温度下,在不存在大气氧的条件下对复合材料进行热处理以形成无定形碳,其中锂嵌入碳颗粒在积聚中转移 步骤A进入流化床反应器并涂覆有由聚合物和硅颗粒组成的壳,以直接形成粉状复合材料,并且可以热解以形成无定形碳或相应的聚合物前体的聚合物和/或 硅颗粒作为溶液或悬浮液进料到流化床反应器中。