Title:
POSITIVE ELECTRODE FOR LITHIUM-ION RECHARGEABLE BATTERY, LITHIUM-ION RECHARGEABLE BATTERY, AND METHOD FOR PRODUCING POSITIVE ELECTRODE FOR LITHIUM-ION RECHARGEABLE BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/105729
Kind Code:
A1
Abstract:
Provided is a lithium-ion rechargeable battery which combines excellent electrical conductivity and adhesion of the electrode active material with respect to the collector, and which can dramatically improve battery characteristics compared to the prior art. This positive electrode for lithium-ion rechargeable battery comprises a collector and an electrode active material-containing layer provided on the collector. The electrode active material-containing layer contains active material particles and an electroconductive material which connects active material particles. The mass ratio of active material particles:electroconductive material:other components in the electrode active material-containing layer is 95-99.7:0.3-5:0-1. The electroconductive material contains a first long carbon material having a first length, and a second long carbon material having a second length which is greater than the first length. The ratio of the second length with respect to the first length falls within the range of 2 to 50, inclusive.
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Inventors:
ZETTSU NOBUYUKI (JP)
TESHIMA KATSUYA (JP)
KIM DAEWOOK (JP)
TESHIMA KATSUYA (JP)
KIM DAEWOOK (JP)
Application Number:
PCT/JP2019/045732
Publication Date:
May 28, 2020
Filing Date:
November 22, 2019
Export Citation:
Assignee:
UNIV SHINSHU (JP)
International Classes:
H01M4/13; C01B32/159; C01B32/168; H01M4/139; H01M4/62
Foreign References:
| JP2018097961A | 2018-06-21 | |||
| US20130248772A1 | 2013-09-26 | |||
| JP2018523902A | 2018-08-23 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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