Secondary battery, battery pack, vehicle, and stationary power source
By using polymer microgel particles and electrolytes of water in secondary batteries, the hydrolysis and expansion problems in low-temperature high-temperature environments are solved, and the battery's good discharge performance in a wide temperature range is achieved.
JP2025043111AActive Publication Date: 2025-03-28KK TOSHIBA
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Patent Information
- Application Number
- JP2023150437
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-15
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2043-09-15
AI Technical Summary
Technical Problem
The existing secondary batteries have problems such as hydrolyzed electrolytes, hydrogen generation, water evaporation and freezing expansion in low-temperature environments, which affect their discharge performance.
Method used
Using an electrolyte containing polymer microgel particles and water, the electrolyte can change its form reversibly when temperature changes, from liquid to gel or vice versa, reducing water evaporation and freezing expansion.
Benefits of technology
Maintain good discharge performance in low-temperature and high-temperature environments, avoid hydrolysis and hydrogen generation, and improve the stability and service life of the battery.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide a secondary battery, a battery pack, a vehicle, and a stationary power source.SOLUTION: According to an embodiment, a secondary battery is provided that includes a positive electrode 5, a negative electrode 3, and an electrolyte. The electrolyte is in contact with at least one of the positive electrode 5 or the negative electrode 3. The electrolyte also includes polymer micelles 4b and water 4a.SELECTED DRAWING: Figure 1
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