All-solid-state batteries
By positioning electrode tabs on the end faces of the electrode stack in all-solid-state batteries, heat dissipation is improved without reducing energy density, addressing the issue of energy loss in existing designs.
JP7888364B2Active Publication Date: 2026-07-13NISSAN MOTOR CO LTD +1
Patent Information
- Application Number
- JP2022096762
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-06-15
- Publication Date
- 2026-07-13
- Estimated Expiration
- 2042-06-15
AI Technical Summary
Technical Problem
The all-solid-state battery experiences a decrease in cell energy density due to the arrangement of first and second heat transfer materials.
Method used
Positioning positive and negative electrode tabs on the end faces of the electrode stack to facilitate heat dissipation without additional materials, utilizing electrode tabs with high thermal conductivity to efficiently transfer heat.
Benefits of technology
Heat dissipation is enhanced while maintaining cell energy density, preventing rapid degradation and suppressing the need for additional heat transfer materials.
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Abstract
To provide an all-solid-state battery capable of radiating heat while suppressing decrease in cell energy density.SOLUTION: An all-solid-state cell 1A includes a stacked body 10 and an exterior body 60 for housing the stacked body 10. The stacked body 10 includes positive electrode layers 11a to 11f, negative electrode layers 12a to 12f, solid-state electrolytic layers 13a to 13e, a positive electrode current collector 20, and a negative electrode current collector 30. The all-solid-state cell 1A includes a positive electrode tab 40 that is disposed on an upper end surface 10a in a stacking direction of the stacked body 10, being joined to a positive electrode current collector 20, and extends to the outside of the exterior body 60, and a negative electrode tab 50 that is disposed on a lower end surface 10b, being joined to a negative electrode current collector 30, and extends to the outside of the exterior body 60.SELECTED DRAWING: Figure 1
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Citation Information
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