• 专利标题:   Positive electrode used in secondary battery e.g. portable electronic device, has current collector, carbon material layer and active material layer comprising active material, graphene, and binder over current collector.
  • 专利号:   US2016308200-A1
  • 发明人:   YAMAKAJI M, KAWAKAMI T, MOTOYOSHI M, YATABE R
  • 专利权人:   SEMICONDUCTOR ENERGY LAB
  • 国际专利分类:   H01M010/0525, H01M004/136, H01M004/36, H01M004/58, H01M004/587, H01M004/62
  • 专利详细信息:   US2016308200-A1 20 Oct 2016 H01M-004/36 201673 Pages: 26 English
  • 申请详细信息:   US2016308200-A1 US193478 27 Jun 2016
  • 优先权号:   JP186404

▎ 摘  要

NOVELTY - A positive electrode (100) has a current collector (101) and an active material layer (102) over the current collector. and a carbon layer. The active material layer comprises an active material, graphene, a binder and a carbon layer. The carbon layer is in contact with a surface of the active material. The proportion of the graphene in the active material layer is 0.1-1.0 wt.%. The maximum value of discharge capacity of the positive electrode is greater than or equal to 140 mAh/g at a discharging rate of 1 C. USE - Positive electrode is used in secondary battery. Uses include but not limited to television, lighting devices, computers, laptops, digital versatile discs (DVDs), wall clocks, guide lights, traffic lights, motorcycles and liquid crystal display device, etc. ADVANTAGE - The positive electrode provides excellent battery characteristics and electrode strength at a predetermined level. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of positive electrode for a secondary battery. Positive electrode (100) Current collector (101) Active material layer (102)