公开(公告)号：WO2012071914A1

公开(公告)日：2012-06-07

申请号：PCT/CN2011/078950

申请日：2011-08-25

Applicant: BYD COMPANY LIMITED ,  MA, Yongjun ,  TU, Pei ,  GUO, Zizhu

Inventor： MA, Yongjun ,  TU, Pei ,  GUO, Zizhu

IPC: H01M4/583 ,  H01M4/587 ,  H01M4/48 ,  H01M10/052

CPC classification number: H01M4/583 ,  B82Y30/00 ,  H01M4/362 ,  H01M4/366 ,  H01M4/38 ,  H01M4/48 ,  H01M4/58 ,  H01M4/5815 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/0525 ,  Y02E60/122

Abstract: A negative active material, a method for preparing the negative active material and a lithium ion battery comprising the same are provided. The negative active material may comprise: a core, an intermediate layer consisting of a first material and an outmost layer consisting of a second material, which is coated on a surface of the intermediate layer. The first material may be at least one selected from the group consisting of the elements that form alloys with lithium, and the second material may be at least one selected from the group consisting of transition metal oxides, transition metal nitrides and transition metal sulfides.

Abstract translation: 提供负极活性物质，制备负极活性物质的方法和包含该负极活性物质的锂离子电池。 负极活性材料可以包括：芯，由第一材料组成的中间层和由第二材料组成的最外层，其涂覆在中间层的表面上。 第一材料可以是选自与锂形成合金的元素中的至少一种，第二材料可以是选自过渡金属氧化物，过渡金属氮化物和过渡金属硫化物中的至少一种。

公开(公告)号：WO2012071916A1

公开(公告)日：2012-06-07

申请号：PCT/CN2011/079214

申请日：2011-08-31

Applicant: BYD COMPANY LIMITED ,  MA, Yongjun ,  TU, Pei ,  GUO, Zizhu

Inventor： MA, Yongjun ,  TU, Pei ,  GUO, Zizhu

IPC: H01M4/133 ,  H01M4/1393

CPC classification number: H01M4/133 ,  H01M4/362 ,  H01M4/38 ,  H01M4/48 ,  H01M4/5825 ,  H01M4/583 ,  H01M10/0525 ,  Y02E60/122

Abstract: A negative active material, a method of preparing the negative active material and a lithium ion battery comprising the negative active material are provided. The negative active material may comprise: a core (1) composed of a carbon material; and a plurality of composite materials (2) attached to a surface of the core (1), each of which may comprise a first material (21) and a second material (22) coated on the first material (21), in which the first material (21) may be at least one selected from the elements that may form an alloy with lithium, and the second material (22) may be at least one selected from the group consisting of transition metal oxides, transition metal nitrides and transition metal sulfides.

Abstract translation: 提供负极活性物质，制备负极活性物质的方法和包含负极活性物质的锂离子电池。 负极活性材料可以包括：由碳材料构成的芯（1）; 和多个复合材料（2），其附接到所述芯体（1）的表面，每个所述复合材料（2）可以包括涂覆在所述第一材料（21）上的第一材料（21）和第二材料（22），其中 第一材料（21）可以是从可与锂形成合金的元素中选择的至少一种，第二材料（22）可以是选自过渡金属氧化物，过渡金属氮化物和过渡金属中的至少一种 硫化物。