Title:
LITHIUM ION SECONDARY BATTERY POSITIVE ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2019/146720
Kind Code:
A1
Abstract:
One embodiment provides a lithium ion secondary battery positive electrode that has the same charge/discharge characteristics as lithium ion secondary battery positive electrodes produced by means of conventional non-aqueous processes but is obtained by means of an aqueous process that uses an aqueous binder. One embodiment of the present disclosure relates to a lithium ion secondary battery positive electrode that includes a collector and a mixture layer that is formed on the collector. The mixture layer includes, as a binder, polymer particles that contain: a structural unit (A) that is derived from a compound that is represented by formula (I); and a structural unit (B) that is derived from at least one type of compound selected from compounds represented by formula (II), compounds represented by formula (III), and unsaturated dibasic acids. Structural unit (A) is 50–99.9 mass% of the total structural units of the polymer particles, and structural unit (B) is 0.1–20 mass% of the total structural units of the polymer particles.
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Inventors:
OKI KAZUO
HIRAISHI ATSUSHI
HIRAISHI ATSUSHI
Application Number:
PCT/JP2019/002344
Publication Date:
August 01, 2019
Filing Date:
January 24, 2019
Export Citation:
Assignee:
KAO CORP (JP)
International Classes:
H01M4/13; C08F8/44; H01M4/139; H01M4/62
Domestic Patent References:
| WO2017110901A1 | 2017-06-29 | |||
| WO2014192652A1 | 2014-12-04 |
Foreign References:
| JP2014123495A | 2014-07-03 | |||
| JP2015159069A | 2015-09-03 |
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (JP)
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