Battery pack, battery pack assembling method, and electric device
By dividing the internal space of the battery pack into separate, unconnected cavities and placing the battery cell assembly and BMS in different cavities, the problem of BMS damage during battery module thermal runaway is solved, thereby improving the safety and energy density of the battery pack.
WO2026137604A1PCT designated stage Publication Date: 2026-07-02EVE ENERGY CO LTD
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- EVE ENERGY CO LTD
- Filing Date
- 2025-03-12
- Publication Date
- 2026-07-02
Smart Images
Figure CN2025082016_02072026_PF_FP_ABST
Abstract
The present application relates to the technical field of batteries, and discloses a battery pack, a battery pack assembling method, and an electric device. The battery pack comprises a battery case, a battery cell assembly, and a BMS; the battery case is provided with a first accommodating cavity and a second accommodating cavity which are not communicated with each other; the battery cell assembly is arranged in the first accommodating cavity; the battery cell assembly comprises battery cells; and the BMS is arranged in the second accommodating cavity. When a battery cell is in thermal runaway and ejects high-temperature and high-pressure gas and particles, the high-temperature and high-pressure gas and particles would not enter the second accommodating cavity, and thus would not splash onto the BMS, thereby providing a guarantee for normal working of the BMS when the battery cell is in thermal runaway.
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