Invention Grant

  • Patent Title: Negative electrode active material of lithium secondary battery, negative electrode of lithium secondary battery, lithium secondary battery for vehicle installation using the negative electrode active material and negative electrode, and method for manufacturing the negative electrode active material
  • Patent Title (中): 锂二次电池的负极活性物质,锂二次电池的负极,使用负极活性物质和负极的车辆安装用锂二次电池以及负极活性物质的制造方法
  • Application No.: US13319602
    Application Date: 2010-05-14
  • Publication No.: US08877384B2
    Publication Date: 2014-11-04
  • Inventor: Taisa IkedaKazuki TagawaYoichi Kawano
  • Applicant: Taisa IkedaKazuki TagawaYoichi Kawano
  • Applicant Address: JP Tokyo
  • Assignee: Nippon Steel Chemical Co., Ltd.
  • Current Assignee: Nippon Steel Chemical Co., Ltd.
  • Current Assignee Address: JP Tokyo
  • Agency: Oliff PLC
  • Priority: JP2009-118855 20090515; JP2010-108360 20100510
  • International Application: PCT/JP2010/003262 WO 20100514
  • International Announcement: WO2010/131476 WO 20101118
  • Main IPC: H01M4/58
  • IPC: H01M4/58 H01M4/62 H01M10/0525 H01M4/587
Negative electrode active material of lithium secondary battery, negative electrode of lithium secondary battery, lithium secondary battery for vehicle installation using the negative electrode active material and negative electrode, and method for manufacturing the negative electrode active material
Abstract:
A negative electrode active material of lithium secondary battery include: at least one of a petroleum-derived green coke and a coal-derived green coke, and at least one of a petroleum-derived calcined coke and a coal-derived calcined coke within a mass ratio range of 90:10 to 10:90; a phosphorous compound within a range of 0.1 to 6.0 parts by mass in amount equivalent to phosphor relative to 100 parts by mass of the at least one of the green cokes and the at least one of the calcined cokes; and a boron compound within a range of 0.1 to 6.0 parts by mass in amount equivalent to boron relative to 100 parts by mass of the at least one of the green cokes and the at least one of the calcined cokes.
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