Battery 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: 2022-01-28
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 present invention relates to the field of battery simulation technology, and its embodiment provides a battery thermal runaway simulation circuit, including: a battery, and a triode arranged in the electrolyte of the battery, the collector of the triode and the The positive pole of the battery cell is connected, the emitter of the triode is connected with the negative pole of the battery cell, and the base of the triode is drawn out as a leakage resistance adjustment control terminal. At the same time, a corresponding battery thermal runaway simulation method and a battery thermal runaway simulation system are also provided. In the embodiment of the present invention, the thermal runaway is simulated by embedding the battery core in the high-power triode, and the trigger energy of the thermal runaway is completely from the battery itself and inside, which can trigger the thermal runaway process more realistically; and by adjusting the size of the base current, the Simulate the whole process of thermal runaway caused by internal short circuit, the current can be adjusted in a large range and the process is controllable; and the circuit is simple and convenient, which can reflect the changes of cell 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