Battery pack thermal runaway (TR) propagation mitigation system
The onboard liquid cooling system addresses the challenge of heat distribution in battery systems by actively redistributing heat from thermal runaway modules, using a recirculation system with dual loop configurations and sensors to prevent temperature spikes and failures.
WO2026147797A1PCT designated stage Publication Date: 2026-07-09WISK AERO LLC
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- WISK AERO LLC
- Filing Date
- 2025-12-23
- Publication Date
- 2026-07-09
Smart Images
Figure US2025061154_09072026_PF_FP_ABST
Abstract
A thermal runaway (TR) propagation mitigation system includes a plurality of battery modules, and an onboard recirculation system coupled to the plurality of battery modules. The onboard recirculation system includes a primary valve for transitioning the onboard recirculation system between a closed loop configuration and an open loop configuration, a cooling fluid container storing cooling fluid provided to the TR propagation mitigation system when the onboard recirculation system is in the closed loop configuration, and a pump for flowing the cooling fluid through the TR propagation mitigation system when the onboard recirculation system is in the closed loop configuration. A method of cooling a plurality of battery modules includes transitioning a primary valve between an open configuration and a closed configuration, distributing cooling fluid through a common fluid line to the plurality of battery modules in a battery pack when the primary valve is in the closed configuration.
Need to check novelty before this filing date? Find Prior Art