Abstract: Disclosed is a portable start-up power supply comprising supercapacitors, lithium-ion batteries, a supercapacitor precharge module, a parallel switch module, a battery management system (BMS), a charging module, a controller, a switch and a car battery bridging and protection module, wherein the controller is connected with the charging module, the BMS, the supercapacitor precharge module, the parallel switch module, the supercapacitors, the car battery bridging and protection module, and the switch; the charging module is connected with the lithium-ion batteries through the BMS; the positive electrode of the lithium-ion battery is connected with the positive electrode of the supercapacitor through the supercapacitor precharge module; the supercapacitors is connected with the car battery bridging and protection module; and the parallel switch module is connected with the lithium-ion batteries and the supercapacitors.

Abstract: Disclosed is a device for detecting battery deformation by a sensor module and a method therefor, comprising a battery module, a circuit board, a fixed base groove, a sensor module and a battery chamber, wherein the former three parts are provided in the battery chamber; the sensor module which forms a protective system with the circuit board is provided in the fixed base groove and located on one side of the fixed base groove near the battery module; the battery module and the sensor module are electrically connected to the circuit board respectively. Once any abnormal deformation of overall or local morphology of the battery module reaches the pre-set threshold, the sensor in the sensor module will be triggered to send a trigger signal, so that the circuit board will stop charging and discharging of the battery module to avoid more serious consequences and protect the product and users' safety.