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Safety test of the LiCoO2/Li pouch cell with DSM‐SPE. a) Digital photo of the pouch cell with DSM‐SPE after fully charged. b) The working cell to light up an LED device. c) Nail test for the pouch cell. d) Voltage detection of the pouch cell after nail test and corner cut test. e,f) Pouch cell can still lighten the LED after nail test and corner‐cut test at normal and bending states.
