Title:
SILICA-COATED CARBON BLACK, ELECTRODE COMPOSITION USING SAME, SECONDARY-BATTERY ELECTRODE, AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2016/186065
Kind Code:
A1
Abstract:
Provided are the following: a silica-coated carbon black which is capable of prolonging the life of a battery by suppressing electrolyte decomposition or gas generation when the battery is exposed to high voltage or at time of overvoltage and with which excellent conductivity and dispersibility are obtained; a secondary-battery electrode using the same and having excellent durability; and a secondary battery. A secondary-battery electrode having excellent durability and a secondary battery are obtained by using the silica-coated carbon black, the surface of the carbon black being coated by silica, wherein the ratio (amount of DBP absorbed/amount of compressed DBP absorbed)of the amount of DBP absorbed to the amount of compressed DBP absorbed by the carbon black is 2.2 or less, and the local electron spin density per unit mass at 23˚C of the silica-coated carbon black is 5.0 x 1018 electrons/g or less.
Inventors:
NISHIKAWA MIKA (JP)
NAKO YUKI (JP)
ITO TETSUYA (JP)
YOKOTA HIROSHI (JP)
NAKO YUKI (JP)
ITO TETSUYA (JP)
YOKOTA HIROSHI (JP)
Application Number:
PCT/JP2016/064425
Publication Date:
November 24, 2016
Filing Date:
May 16, 2016
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
H01M4/62; C09C1/48; H01M4/13
Domestic Patent References:
| WO2016084909A1 | 2016-06-02 | |||
| WO2016088880A1 | 2016-06-09 |
Foreign References:
| JP2014241279A | 2014-12-25 | |||
| JPH0668869A | 1994-03-11 | |||
| JPH09296072A | 1997-11-18 | |||
| JPH07316463A | 1995-12-05 | |||
| JP2002532572A | 2002-10-02 |
Attorney, Agent or Firm:
SK INTELLECTUAL PROPERTY LAW FIRM et al. (JP)
ＳＫ特許業務法人 (JP)
ＳＫ特許業務法人 (JP)
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