Impact of safety valves on thermal runaway characteristics of 21 700-size lithium-ion cells† † Electronic supplementary information (ESI) available. See DOI: https://doi.org/10.1039/d3ra01374j

ABSTRACT: To demonstrate the impact of safety valves on the thermal runaway characteristics of 21 700-size lithium-ion cells, this work carries out a series of abusive tests including over-heating tests, accelerating rate calorimetry (ARC) tests and overcharge tests; in the meantime, the impact of safety valves on cells with various states of charge (SOC) and states of health (SOH) is unveiled accordingly. Safety valves have a great impact on the thermal runaway behavior of 21 700-size cells, which effectively restrains the thermal runaway risks and hazards of cells under the over-heating conditions. The presence of a safety valve could even prevent a cell from the thermal runaway induced by overcharge. A cell with a larger SOC and/or a lower SOH is prone to the thermal runaway occurring, with an ea

SUBMITTER: Ouyang L 

PROVIDER: S-EPMC10021560 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature