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US 2019/0296400 A1Published application
Secondary battery, battery pack, vehicle, and stationary power supply
AssigneeKabushiki Kaisha Toshiba
InventorsYumiko Sekiguchi, Hayato Seki, Shinsuke Matsuno, Norio Takami
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Abstract
According to one embodiment, there is provided a secondary battery including a positive electrode, a negative electrode, and an aqueous electrolyte. The negative electrode contains a titanium-containing oxide. The aqueous electrolyte contains a solvent and alkali metal ions or alkaline earth metal ions, the solvent containing water and a water-soluble organic solvent. An interfacial tension of the aqueous electrolyte is 37 mN/m or less.
Claims17
A secondary battery comprising:
- a positive electrode;
- a negative electrode comprising a titanium-containing oxide;
- and
- an aqueous electrolyte comprising a solvent and alkali metal ions or alkaline earth metal ions, the solvent comprising water and a water-soluble organic solvent, and an interfacial tension of the aqueous electrolyte being 37 mN/m or less.
1 more element
Dependencies are inferred from the claim text.