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1. 发明申请

US20090148377A1 Process For Producing Electrode Active Material For Lithium Ion Cell 审中-公开
标题翻译：锂离子电池用电极活性物质的制备方法
公开(公告)号：US20090148377A1
公开(公告)日：2009-06-11
申请号：US11953953
申请日：2007-12-11
申请人： Ralph E. Moshage , Eric Meyer , Qiuhua Zhang , Scott L. Hoge , Dan Hartsough , M. Yazid Saidi
发明人： Ralph E. Moshage , Eric Meyer , Qiuhua Zhang , Scott L. Hoge , Dan Hartsough , M. Yazid Saidi
IPC分类号： C01B25/30
CPC分类号： C01B25/45 , H01M4/136 , H01M4/5825
摘要： The present invention relates to a method for preparing a lithium vanadium phosphate material comprising mixing water, lithium dihydrogen phosphate, V2O3 and a source of carbon to produce a first slurry; wet blending the first slurry; spray drying the wet blended slurry to form a precursor composition; milling the precursor composition to obtain a milled precursor composition; compacting the milled precursor to obtain a compacted precursor; pre-baking the compacted precursor composition to obtain a precursor composition with low moisture content; and calcining the precursor composition with low moisture content at a time and temperature sufficient to produce a lithium vanadium phosphate. The lithium vanadium phosphate so produced can optionally be further milled to obtain the desired particle size. The electrochemically active lithium vanadium phosphate so produced is useful in making electrodes and batteries and more specifically is useful in producing cathode materials for electrochemical cells.
摘要翻译：本发明涉及一种制备磷酸钒锂材料的方法，包括将水，磷酸二氢锂，V 2 O 3和碳源混合以产生第一浆料; 湿混合第一浆料; 喷雾干燥湿混合浆料以形成前体组合物; 研磨前体组合物以获得研磨的前体组合物; 压实研磨的前体以获得压实的前体; 预先压制压实的前体组合物以获得低水分含量的前体组合物; 并在足以产生磷酸钒锂的时间和温度下煅烧具有低水分含量的前体组合物。如此生产的磷酸钒锂可以任选地进一步研磨以获得所需的粒度。如此生产的电化学活性锂钒磷酸盐可用于制造电极和电池，更具体地可用于生产用于电化学电池的阴极材料。

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