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Title:
POSITIVE ELECTRODE ACTIVE MATERIAL FOR ALL-SOLID-STATE LITHIUM ION BATTERIES, ELECTRODE AND ALL-SOLID-STATE LITHIUM ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/145444
Kind Code:
A1
Abstract:
A positive electrode active material for all-solid-state lithium ion batteries, said positive electrode active material being composed of particles that contain a crystal of a lithium metal composite oxide, wherein: the particles have a lamellar structure, while containing at least Li and a transition metal; the ratio of the integrated intensity I003 of a diffraction peak within the range of 2θ = 18.5 ± 1° to the integrated intensity I104 of a diffraction peak within the range of 2θ = 44.4 ± 1°, namely I003/I104 is more than 1.23 in a powder X-ray diffraction measurement using a CuKα ray; and a press density A is 2.90 g/cm3 or more if this positive electrode active material for all-solid-state lithium ion batteries is compressed under a pressure of 45 MPa.

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Inventors:
KADOWAKI TAKUYA (JP)
KAGEURA JUN-ICHI (JP)
MURAKAMI CHIKARA (JP)
Application Number:
PCT/JP2021/001332
Publication Date:
July 22, 2021
Filing Date:
January 15, 2021
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
H01M4/131; H01M4/36; H01M4/505; H01M4/525; H01M4/62; H01M10/052; H01M10/0562; H01M10/0585
Foreign References:
JP2019160571A2019-09-19
JP2016044120A2016-04-04
JP2016026981A2016-02-18
JP2017199665A2017-11-02
JP2015195155A2015-11-05
JP2011082150A2011-04-21
JP2007123255A2007-05-17
JP2001185221A2001-07-06
JP2012243710A2012-12-10
JP2020006338A2020-01-16
JP2002201028A2002-07-16
JPH0434491B21992-06-08
JPH043441B21992-01-23
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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