Battery system and operating method thereof, and battery pack and vehicle including the same
By using fluid springs and fluid pressure adjustment mechanisms in the battery system, uniform control and thermal management of battery cell pressure are achieved, and the problems of uneven pressure and thermal runaway in the prior art are solved, which improves the performance and safety of the battery system. sex.
CN113451666BActive Publication Date: 2025-01-07SAMSUNG SDI CO LTD
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Patent Information
- Application Number
- CN202110324284.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-03-22
- Filing Date
- 2021-03-26
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2041-03-26
Smart Images
Figure CN113451666B_ABST
Abstract
The present invention relates to a battery system (100), comprising: a plurality of battery cells (101, ..., 10 12 ) stack; fluid springs (30); and a fluid pressure regulating mechanism (12). The fluid springs (30) are located between the first end plate (40a) and the second end plate (40b) and are configured to apply pressure to the battery cells. At least one of the fluid springs (30) includes an elastic device having a predetermined Young's modulus. The fluid pressure regulating mechanism (12) is connected to one or more fluid springs (30) including an elastic device, which is configured to generate a negative pressure in the fluid within the connected fluid springs (30). In addition, the battery system allows avoiding or minimizing the risk of thermal runaway spilling between different cells of the battery system. The present invention also relates to a method for operating the battery system.
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