Energy storage cell

JP2026102951APending Publication Date: 2026-06-23TOYOTA JIDOSHA KK
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
TOYOTA JIDOSHA KK
Filing Date
2026-04-02
Publication Date
2026-06-23

AI Technical Summary

Benefits of technology

【0016】 本開示によれば、端面の溶接よるケースの歪みが抑制された蓄電セルを提供する。

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Abstract

To provide a power storage cell in which distortion of the case due to welding of the end faces is suppressed. [Solution] In the energy storage cell 1, the case 200 has a bottom 210, a first side portion 221, a second side portion 222, a first end portion 231, a second end portion 232, a welded portion 251, and a rib 260. The first side portion 221 rises from the bottom portion 210. The second side portion 222 rises from the bottom portion 210 while facing the first side portion 221. The first end portion 231 extends from the first side portion 221 in the direction in which the first side portion 221 faces the second side portion 222. The second end portion 232 extends from the second side portion 222 in the direction in which the second side portion 222 faces the first side portion 221. The welded portion 251 connects the first end portion 231 and the second end portion 232. The rib 260 is provided at the corner 241 formed by the first side portion 221 and the first end portion 231.
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Claims

1. Electrode body and The system comprises a case for housing the electrode body, The aforementioned case is, The bottom and, The first side portion rises from the bottom portion, A second side portion that rises from the bottom portion while facing the first side portion, A first end face portion extending from the first side portion in the direction in which the first side portion faces the second side portion, The second side portion has a second end face portion that extends from the second side portion in the direction in which the second side portion faces the first side portion, A welded portion connecting the first end face and the second end face, A storage cell having ribs provided at the corners formed by the first side surface and the first end surface.

2. The welded portion extends in the height direction, which is the direction in which the first side portion stands upright. The energy storage cell according to claim 1, wherein the ribs extend in the height direction.

3. The energy storage cell according to claim 1 or claim 2, wherein the rib protrudes inward from the corner of the case.

4. The energy storage cell according to claim 1 or claim 2, wherein the rib protrudes from the corner outward from the case.

5. The welded portion extends in the height direction, which is the direction in which the first side portion stands upright. The rib extends in the height direction, The energy storage cell according to claim 1, wherein the ribs protrude from the corners both inward and outward from the case.