Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
POSITIVE ELECTRODE COMPOSITION FOR LITHIUM ION SECONDARY BATTERIES, POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/073830
Kind Code:
A1
Abstract:
The present invention provides a positive electrode composition for lithium ion secondary batteries, which enables easy achievement of a lithium ion secondary battery that has a low internal resistance, while exhibiting excellent output characteristics, cycle characteristics and low-temperature characteristics. A positive electrode composition for lithium ion secondary batteries, which contains a conductive agent and an active material that is capable of absorbing and desorbing lithium ions, and which is characterized in that: the active material is composed of a lithium nickel cobalt manganese composite oxide; the conductive agent is composed of a carbon black and carbon nanotubes; the carbon black has a BET specific surface area of 100-400 m2/g and a DBP absorption of 210-380 ml/100 g; and the carbon nanotubes have an average diameter of 7-15 nm.

Inventors:
OSUMI SHINICHIRO (JP)
NAGAI TATSUYA (JP)
ITO TETSUYA (JP)
ZHONG SHENG WEN (CN)
CHEN JUN (CN)
ZHANG QIAN (CN)
ZENG MIN (CN)
Application Number:
JP2018/036513
Publication Date:
April 18, 2019
Filing Date:
September 28, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DENKA COMPANY LTD (JP)
UNIV JIANGXI SCI & TECHNOLOGY (CN)
International Classes:
H01M4/131; H01M4/505; H01M4/525; H01M4/62
Domestic Patent References:
WO2012114590A12012-08-30
WO2013179909A12013-12-05
Foreign References:
JP2017182989A2017-10-05
JP2015115106A2015-06-22
JP2007080652A2007-03-29
JPH11176446A1999-07-02
JP2001126733A2001-05-11
JP2010238575A2010-10-21
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
Download PDF: