Title:
ELECTRODE CONDUCTIVE AGENT FOR LITHIUM ION BATTERY, ELECTRODE COMPOSITION, AND ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2021/107094
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an electrode conductive agent for lithium ion batteries with which it is possible, even when the content ratio of Ni in an active material is increased, to suppress potential decrease and corrosion of a collector foil, and to increase battery capacity, reduce charge time, and increase battery life. The present invention provides an electrode conductive agent, an electrode composition, and an electrode that contain exfoliated graphite having the following features: (1) The band intensity ratio of a Raman spectrum according to Raman spectroscopic analysis using an Ar laser satisfies the relationship [intensity of the G band (1580 cm-1)/intensity of the D band (1360 cm-1)]≧8; and (2) the half width of the G band of a Raman spectrum according to Raman spectroscopic analysis using an Ar laser is 15 to 22 cm-1.
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Inventors:
MORI TAKAKI (JP)
TSUJI NOBUHIRO (JP)
MURATA MANABU (JP)
KAWAKAMI HISASHI (JP)
WATANABE TAKAHIRO (JP)
IMAI YASUHITO (JP)
KOJIMA YOSHIRO (JP)
HORIGUCHI MEI (JP)
SUGIMOTO HISANORI (JP)
TSUJI NOBUHIRO (JP)
MURATA MANABU (JP)
KAWAKAMI HISASHI (JP)
WATANABE TAKAHIRO (JP)
IMAI YASUHITO (JP)
KOJIMA YOSHIRO (JP)
HORIGUCHI MEI (JP)
SUGIMOTO HISANORI (JP)
Application Number:
PCT/JP2020/044226
Publication Date:
June 03, 2021
Filing Date:
November 27, 2020
Export Citation:
Assignee:
NIPPON GRAPHITE IND CO LTD (JP)
MORI POLYMER CO INC (JP)
MORI POLYMER CO INC (JP)
International Classes:
H01M4/13; H01M4/131; H01M4/139; H01M4/1391; H01M4/505; H01M4/525; H01M4/62
Foreign References:
| JP2004063423A | 2004-02-26 | |||
| JPH0864244A | 1996-03-08 | |||
| JPH10334915A | 1998-12-18 | |||
| JP2018049769A | 2018-03-29 | |||
| JPH1154123A | 1999-02-26 |
Attorney, Agent or Firm:
TANIGAWA AND PARTNERS, PATENT FIRM (JP)
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