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Title:
SECONDARY CELL
Document Type and Number:
WIPO Patent Application WO/2019/159773
Kind Code:
A1
Abstract:
A secondary cell (30) comprises: a solid electrolyte layer (18) having water (H2O) and/or a hydroxyl group (-OH); a positive-electrode active material layer (22) disposed on the top surface of the solid electrolyte layer and including nickel hydroxide as a positive-electrode active material; a second electrode (positive electrode) (26) disposed on the top surface of the positive-electrode active material layer; a negative-electrode active material layer (16) disposed on the bottom layer of the solid electrolyte layer facing the positive-electrode active material layer and including as a negative-electrode active material a titanium oxide compound (TiOx) having water (H2O) and/or a hydroxyl group (-OH); a first electrode (negative electrode) (12) disposed on the bottom surface of the negative-electrode active material layer facing the second electrode (positive electrode) (26); a p-type semiconductor layer (24) disposed between the positive-electrode active material layer and the second electrode (positive electrode); and an n-type semiconductor layer (14) disposed between the negative-electrode active material layer and the first electrode (negative electrode). A secondary cell is provided in which energy density is increased.

Inventors:
TSUNOKUNI KAZUYUKI (JP)
TONOKAWA TAKASHI (JP)
NAKADA KUNIHIKO (JP)
KOSAKA YUTAKA (JP)
Application Number:
PCT/JP2019/004165
Publication Date:
August 22, 2019
Filing Date:
February 06, 2019
Export Citation:
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Assignee:
NIHON MICRONICS KK (JP)
International Classes:
H01M4/36; H01M4/48; H01M10/36; H01M10/38
Foreign References:
JP2017228519A2017-12-28
JP2015082445A2015-04-27
JP2000272932A2000-10-03
JP2017212430A2017-11-30
JP2018037261A2018-03-08
JPS558542B21980-03-04
JP5297809B22013-09-25
JP2015082445A2015-04-27
JP2016082125A2016-05-16
JP2017147186A2017-08-24
Other References:
T. MIYANAGAI. WATANABES. IKEDA: "Structures of Hydrated Titanium and Vanadium Ions in Aqueous Solutions Studied by X-Ray Absorption Spectroscopy", BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, vol. 63, 1990, pages 3282 - 3287
See also references of EP 3754776A4
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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