Battery core thermal runaway simulation circuit and method
A technology of thermal runaway and battery cells, applied in circuits, battery cooling/heating, electrical components, etc., can solve the problem that the simulation model cannot accurately simulate the change of internal resistance and current change of the battery core, and achieve a large current adjustable range, The circuit is simple and convenient, and the process is controllable
Active Publication Date: 2021-01-15
SVOLT ENERGY TECHNOLOGY CO LTD
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[0007] In view of this, the present invention aims to propose a battery thermal runaway simulation circuit, method and system to at least solve the problem that the simulation model in the thermal runaway simulation of the battery cannot accurately simulate the change of the internal resistance of the battery and the change of the current
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[0029] It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.
[0030] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0031] figure 1 It is a schematic structural diagram of a battery thermal runaway simulation circuit provided by an embodiment of the present invention. Such as figure 1 As shown, this embodiment provides a battery thermal runaway simulation circuit, including: a battery, and a triode disposed in the electrolyte of the battery, the collector of the triode is connected to the positive electrode of the battery, The emitter of the triode is connected to the negative pole of the cell, and the base ...
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The invention relates to the technical field of battery simulation, and provides a battery core thermal runaway simulation circuit, which comprises a battery core and a triode arranged in an electrolytic solution of the battery core, wherein the collector of the triode is connected with the anode of the battery core, the emitter of the triode is connected with the cathode of the battery core, andthe base electrode of the triode is led out to serve as a leakage resistance adjusting control end. The invention further provides a corresponding battery core thermal runaway simulation method and abattery core thermal runaway simulation system. According to the embodiment of the invention, the thermal runaway is simulated by embedding the battery core into the high-power triode, and the thermalrunaway triggering energy is completely from the battery core and the interior of the battery core, so that the thermal runaway process can be triggered more truly; the whole process of thermal runaway caused by internal short circuit is simulated by adjusting the magnitude of base electrode current, the adjustable range of the current is large, and the process is controllable; and the circuit issimple and convenient, and can reflect the change of the battery core voltage and temperature in different stages of thermal runaway.
Description
technical field [0001] The invention relates to the technical field of battery simulation, in particular to a battery thermal runaway simulation circuit and a battery thermal runaway simulation method. Background technique [0002] To fully simulate a complete thermal runaway process, the following conditions need to be met: 1) The energy of the thermal runaway of the battery cell comes from itself; 2) There is a current generated between the positive and negative electrodes of the battery cell; 3) There is a resistance between the positive and negative electrodes of the battery cell . In the prior art, the methods for simulating the thermal runaway of the battery cell mainly adopt the following methods: 1. The test method for the thermal runaway triggered by heating devices such as electric heaters mainly adopts the method of external heating, so that the received energy of the battery cell is greater than the energy that can be dissipated 2. Built-in resistance method: A ...
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IPC IPC(8): H01M10/615H01M10/637H01M10/654H01M6/50
CPCH01M10/615H01M10/637H01M10/654H01M6/5038Y02E60/10
Inventor 冯志升颜广博
Owner SVOLT ENERGY TECHNOLOGY CO LTD