Aquatic batteries
The inclusion of potassium polyphosphate and silicate in the electrolyte stabilizes aqueous batteries by preventing aluminum leaching from the current collector, ensuring stability and performance.
JP2026089307APending Publication Date: 2026-06-01TOYOTA JIDOSHA KK
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- TOYOTA JIDOSHA KK
- Filing Date
- 2024-11-20
- Publication Date
- 2026-06-01
Smart Images
Figure 2026089307000001_ABST
Abstract
This invention discloses a technology that can suppress the leaching of Al from a current collector into an aqueous electrolyte when an Al-containing current collector is used in an aqueous battery. [Solution] The aqueous battery of the present disclosure has a positive electrode, an aqueous electrolyte, and a negative electrode. One or both of the positive electrode and the negative electrode have a current collector containing Al. The current collector is in contact with the aqueous electrolyte. The aqueous electrolyte contains water, potassium polyphosphate dissolved in the water, and silicate dissolved in the water.
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