公开(公告)号：US20130168610A1

公开(公告)日：2013-07-04

申请号：US13780817

申请日：2013-02-28

Applicant: SHOWA DENKO K.K.

Inventor： Youichi NANBA ,  Masataka TAKEUCHI ,  Akinori SUDOH ,  Satoshi IINOU

IPC: H01M4/133

CPC classification number: H01M4/133 ,  H01M4/364 ,  H01M4/366 ,  H01M4/587 ,  H01M4/62 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0226 ,  H01M10/052

Abstract: The invention relates to a carbon material for forming a battery electrode, comprising carbon powder having a homogeneous structure which is produced by causing an organic compound, serving as a raw material of a polymer, to deposit onto and/or permeate into carbonaceous particles, and subsequently polymerizing the organic compound, followed by thermal treatment at a temperature of 1,800 to 3,300° C., which comprises a structure which is substantially uniform throughout the entirety of the particle from the surface to the central core where a graphite crystal structure region and an amorphous structure region are distributed. By using the material, a battery having high discharging capacity and low irreversible capacity, with excellent coulombic efficiency and excellent cycle characteristics can be fabricated.

Abstract translation: 本发明涉及一种用于形成电池电极的碳材料，其包含通过使作为聚合物的原料的有机化合物沉积到和/或渗透到碳质颗粒中而制成的具有均匀结构的碳粉末，以及 随后将有机化合物聚合，然后在1,800至3300℃的温度下进行热处理，其包括从表面到中心芯的整个颗粒基本上均匀的结构，其中石墨晶体结构区域和 非晶结构区域分布。 通过使用该材料，可以制造具有高放电容量和低不可逆容量的电池，具有优异的库仑效率和优异的循环特性。