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    ANODE MATERIAL OF NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING SAME
    2.
    发明公开
    ANODE MATERIAL OF NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING SAME 审中-公开
    ANODENMATERIALFÜREINESEKUNDÄRBATTERIEMITNICHTWÄSSRIGEMELEKTROLYT UND VERFAHREN ZU SEINER HERSTELLUNG

    公开(公告)号：EP2562853A4

    公开(公告)日：2013-12-18

    申请号：EP11772124

    申请日：2011-04-25

    申请人： NIPPON STEEL & SUMITOMO METAL CORP ,  CHUO DENKI KOGYO CO LTD

    发明人： NEGI NORIYUKI ,  NAGATA TATSUO ,  YAMAMOTO SUKEYOSHI

    IPC分类号： H01M4/38 ,  C22C1/00 ,  C22C13/00 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525

    CPC分类号： H01M4/364 ,  C22C1/00 ,  C22C13/00 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/387 ,  H01M4/622 ,  H01M4/625 ,  H01M10/0525 ,  Y02E60/122 ,  Y02P70/54

    摘要： A negative electrode material according to the present invention which is provided as an inexpensive negative electrode material for a nonaqueous electrolyte secondary battery and which suppresses the amount of expensive Co which is used contains three types of powder materials in the form of alloy material A, alloy material B, and a conductive material. Alloy material A comprises an alloy having a CoSn 2 structure containing Co, Sn, and Fe and having an Sn content of at least 70.1 mass% and less than 82.0 mass%. Alloy material B comprises Co 3 Sn 2 and has a lower discharge capacity than alloy material A, and the proportion R B of the mass of alloy material B based on the total mass of alloy material A and alloy material B is greater than 5.9% and less than 27.1 %. The content of the conductive material is at least 7 mass% and at most 20 mass% based on the total mass of alloy material A, alloy material B, and the conductive material. The exotherm starting temperature determined by differential scanning calorimetry for this negative electrode material is less than 375.4° C.

    摘要翻译： 作为廉价的非水电解质二次电池用负极材料而提供的本发明的负极材料，通过抑制所使用的昂贵的Co的量，含有三种合金材料A，合金 材料B和导电材料。 合金材料A包含具有包含Co，Sn和Fe的CoSn 2结构并且具有至少70.1质量％且小于82.0质量％的Sn含量的合金。 合金材料B包含Co 3 Sn 2并具有比合金材料A更低的放电容量，并且合金材料B的质量基于合金材料A和合金材料B的总质量的比例RB大于5.9％且小于 比27.1％。 基于合金材料A，合金材料B和导电材料的总质量，导电材料的含量为至少7质量％并且至多20质量％。 通过差示扫描量热法测定的该负极材料的放热开始温度低于375.4℃

    NEGATIVE ELECTRODE ACTIVE SUBSTANCE MATERIAL, NEGATIVE ELECTRODE, AND CELL
    6.
    发明公开
    NEGATIVE ELECTRODE ACTIVE SUBSTANCE MATERIAL, NEGATIVE ELECTRODE, AND CELL 审中-公开
    NEGATIVELEKTRODEN-AKTIVSUBSTANZMATERIAL，NEGATIVELEKTRODE UND ZELLE

    公开(公告)号：EP3113258A4

    公开(公告)日：2017-07-19

    申请号：EP15754973

    申请日：2015-02-25

    申请人： NIPPON STEEL & SUMITOMO METAL CORP

    发明人： YAMAMOTO SUKEYOSHI ,  NEGI NORIYUKI ,  NAGATA TATSUO

    IPC分类号： H01M4/38 ,  C22C9/00 ,  C22C9/01 ,  C22C9/02 ,  C22C9/04 ,  C22C9/06 ,  C22C9/10 ,  H01M4/02 ,  H01M4/36 ,  H01M4/587 ,  H01M4/62 ,  H01M10/052

    CPC分类号： H01M4/364 ,  C22C9/02 ,  H01M4/38 ,  H01M4/387 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/027 ,  Y02T10/7011

    摘要： Provided is a negative electrode active material which can improve discharge capacity per amount and charge-discharge cycle characteristics. The negative electrode active material of the present embodiment contains at least one of material A and material B, and material C: Material A: carbonaceous powder material in which a ratio of a peak intensity at 1360 cm -1 with respect to a peak intensity at 1580 cm -1 in the Raman spectrum is not more than 0.5; Material B: carbonaceous powder material in which a ratio of a peak intensity at 1360 cm -1 with respect to a peak intensity at 1580 cm -1 in the Raman spectrum is more than 0.5; Material C: powder material whose main component is an active substance made up of an alloy phase. This alloy phase undergoes thermoelastic diffusionless transformation when releasing metal ions or occluding the metal ions.

    摘要翻译： 本发明提供可以提高单位放电容量和充放电循环特性的负极活性物质。 本实施方式的负极活性物质含有材料A和材料B中的至少一种，材料C：材料A：碳质粉末材料，其中1360cm -1处的峰值强度相对于 在拉曼光谱中1580cm -1不大于0.5; 材料B：拉曼光谱中1360cm -1处的峰值强度相对于1580cm -1处的峰值强度的比率大于0.5的碳质粉末材料; 材料C：主要成分为由合金相构成的活性物质的粉末材料。 当释放金属离子或吸收金属离子时，该合金相发生热弹性无扩散转变。