1. 平台首页
  2. 国际专利信息
  • 专利标题:   Forming positive electrode of battery involves dispersing graphene oxide in medium, followed by adding positive electrode active material and binder to form electrode paste, then applying to positive electrode current collector, and drying.
  • 专利号:   US2013156942-A1, JP2013145740-A, CN103165859-A, KR2013069421-A, US9373834-B2, JP6016597-B2, JP2017027951-A, CN103165859-B, CN107068967-A, JP6239716-B2, JP2018018834-A, KR1986279-B1, KR2019062361-A
  • 发明人:   YAMAKAJI M, YATABE R, TODORIKI H, TODOROKI H, YAMAOGI M, TATABE R, TSUKUDA R
  • 专利权人:   SEMICONDUCTOR ENERGY LAB, SEMICONDUCTOR ENERGY LAB, SEMICONDUCTOR ENERGY LAB
  • 国际专利分类:   H01M004/04, H01M004/139, H01M004/1397, H01M004/58, H01M004/62, H01M010/0525, H01M004/1391, H01M004/48, B05D005/12, H01M004/136, H01M010/052, H01M004/131
  • 专利详细信息:   US2013156942-A1 20 Jun 2013 H01M-004/04 201344 Pages: 28 English
  • 申请详细信息:   US2013156942-A1 US710497 11 Dec 2012
  • 优先权号:   JP276235

▎ 摘　　要

NOVELTY - A method (M1) of forming positive electrode (100) of battery, involves: dispersing graphene oxide in a medium; adding positive electrode active material to the medium to form mixture comprising graphene oxide and positive electrode active material; adding binder to the mixture to form positive electrode paste; applying the electrode paste to positive electrode current collector (101), and drying to form positive electrode active material layer (102) over the current collector. USE - In forming positive electrode for manufacturing battery including lithium ion secondary battery (claimed). ADVANTAGE - The method provides positive electrode which is highly filled with a positive electrode active material and has a high-density positive electrode active material layer; and provides lithium-ion secondary battery having high capacity and improved cycle characteristics. DETAILED DESCRIPTION - A method (M1) of forming a positive electrode (100) of a battery, involves: dispersing graphene oxide in a medium; adding a positive electrode active material to the medium comprising the graphene oxide to form a mixture comprising the graphene oxide and the positive electrode active material; adding a binder to the mixture to form a positive electrode paste; applying the positive electrode paste to a positive electrode current collector (101); and drying the positive electrode paste to form a positive electrode active material layer (102) over the positive electrode current collector so that at least a part of the graphene oxide is reduced to be graphene in the positive electrode active material layer. An INDEPENDENT CLAIM is included for a method of manufacturing a battery comprising a positive electrode, a negative electrode, an electrolyte solution, and a separator, involving forming the positive electrode using the method (M1). DESCRIPTION OF DRAWING(S) - The figure shows a cross-sectional view of a positive electrode. Positive electrode (100) Positive electrode current collector (101) Positive electrode active material layer (102)