公开(公告)号：US20150132646A1

公开(公告)日：2015-05-14

申请号：US14535263

申请日：2014-11-06

Applicant: FURUKAWA ELECTRIC CO.,LTD. ,  THE FURUKAWA BATTERY CO., LTD.

Inventor： Hideo NISHIKUBO ,  Takeshi NISHIMURA ,  Toshio TANI ,  Koji HATAYA ,  Toshiya HIKAMI ,  Masaaki KUBOTA ,  Hidetoshi ABE

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/42 ,  H01M4/62 ,  H01M4/134

CPC classification number: H01M4/364 ,  H01M4/134 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/42 ,  H01M4/622 ,  H01M4/623 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

Abstract: The purpose of the invention is to obtain a negative electrode for a large-capacity nonaqueous electrolyte rechargeable battery having good cycle characteristics. In the present invention, a negative electrode for a nonaqueous electrolyte rechargeable battery is used as a solution, said negative electrode being characterized by having an active material layer on a current collector, said active material layer containing at least granules, and one or more types of coating binder comprising any of a polyimide, polybenzimidazole, polyamide-imide and polyamide. The negative electrode is further characterized in that the granules contain at least active material particles containing: at least one type of element selected from a group comprising Si, Sn, Al, Pb, Sb, Bi, Ge, In and Zn; and a granulation binder.

Abstract translation: 本发明的目的是获得具有良好循环特性的大容量非水电解质可再充电电池用负极。 在本发明中，使用非水电解质二次电池用负极作为溶液，所述负极的特征在于在集电体上具有活性物质层，所述活性物质层至少含有颗粒，以及一种以上 包括聚酰亚胺，聚苯并咪唑，聚酰胺 - 酰亚胺和聚酰胺中的任何一种的涂料粘合剂。 所述负极的特征在于，所述颗粒至少含有活性物质颗粒，所述活性物质颗粒包含：选自由Si，Sn，Al，Pb，Sb，Bi，Ge，In和Zn组成的组中的至少一种元素; 和造粒粘合剂。

公开(公告)号：US20130196158A1

公开(公告)日：2013-08-01

申请号：US13797326

申请日：2013-03-12

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Hirokazu YOSHIDA ,  Kazutomi MIYOSHI ,  Kazuhiko KURUSU ,  Toshio TANI ,  Koji HATAYA ,  Takeshi NISHIMURA ,  Hidemi KATO ,  Takeshi WADA

IPC: H01M4/04 ,  H01M4/38

CPC classification number: H01M4/0495 ,  H01M4/364 ,  H01M4/386 ,  Y10T428/131 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/2993

Abstract: Porous silicon particles and complex porous silicon particles suitable for negative electrode materials etc. for lithium-ion batteries, which achieve high capacity and good cycling characteristics, are provided. Porous silicon particles formed by the joining of a plurality of silicon microparticles, and having an average particle diameter of 0.1 μm to 1000 μm, a three-dimensional network structure having continuous gaps, an average porosity of 15 to 93%, and a structure in which the particles of a whole particle are uniform. Complex porous silicon particles formed by the joining of a plurality of silicon microparticles and a plurality of silicon compound particles, and characterized by containing a compound of silicon and composite elements, having an average particle diameter of 0.1 μm to 1000 μm, and having a three-dimensional network structure having continuous gaps.

Abstract translation: 提供适用于实现高容量和良好循环特性的锂离子电池的负极材料等的多孔硅粒子和复合多孔硅粒子。 通过多个硅微粒的接合而形成的多孔硅颗粒，平均粒径为0.1〜1000μm，具有连续间隙的三维网状结构，15〜93％的平均孔隙率和 整个颗粒的颗粒是均匀的。 通过多个硅微粒与多个硅化合物粒子的接合而形成的复合多孔硅粒子，其特征在于，含有平均粒径为0.1〜1000μm的硅和复合元素的化合物，并具有3个 具有连续间隙的维度网络结构。