Title:
SODIUM ION SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2019153378
Kind Code:
A
Abstract:
To suppress the electrolysis of water when charging a sodium ion secondary battery containing an aqueous electrolyte solution.SOLUTION: A sodium ion secondary battery comprises: a positive electrode; a negative electrode; an aqueous electrolyte interposed between the positive and negative electrodes and containing sodium ions; and an ionic liquid interposed between the aqueous electrolyte solution and the negative electrode. The negative electrode contains a negative electrode active material which develops a capacity as a result of a reaction in which a sodium ion participates. The ion liquid contains an organic cation having hydrophobicity. The sodium ion secondary battery further comprises a solid electrolyte layer having sodium ion conductivity between the negative electrode active material and the ion liquid.SELECTED DRAWING: Figure 1
Inventors:
INAZAWA SHINJI
HARADA KEIZO
MAEDA KAZUYUKI
HARADA KEIZO
MAEDA KAZUYUKI
Application Number:
JP2018035487A
Publication Date:
September 12, 2019
Filing Date:
February 28, 2018
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
H01M10/36; C01G37/02; H01M4/38; H01M4/40; H01M4/46
Attorney, Agent or Firm:
Kawasaki/Hashimoto Patent Office