Lithium ion battery pack thermal runaway processing system and method
A lithium-ion battery pack and processing system technology, which is applied in the field of lithium-ion battery pack thermal runaway processing system, can solve problems such as battery cell chemical reaction boundary control, and achieve the effect of avoiding explosion and fire
Pending Publication Date: 2019-04-05
TSINGHUA UNIV
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[0004] Based on this, it is necessary to provide a thermal runaway processing system and method for lithium-ion battery packs to solve the problem that traditional lithium-ion batteries cannot control the chemical reaction boundary inside the battery cell
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[0048] In order to make the purpose, technical solutions and advantages of this application clearer, the lithium-ion battery pack provided by this application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.
[0049] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.
[0050]The present application provides a lithium-ion battery pack 100 . It should be noted that the lithium-ion battery pack 100 provided in this application does not limit t...
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The application provides a lithium ion battery pack thermal runaway processing system and method. The system comprises a lithium ion battery, an electrolyte suction device, a temperature detecting device and a controller. On the one hand, the lithium ion battery pack thermal runaway processing system provided by the present application is provided with the temperature detecting device on the innerwall of the housing of the lithium ion battery pack so as to monitor the internal temperature of the lithium ion battery pack in real time and to timely detect a thermal runaway phenomenon and execute a solution based on the internal temperature of the lithium ion battery pack after the thermal runaway phenomenon occurs. On the other hand, the housing of the lithium ion battery pack is connectedwith the electrolyte suction device, when the thermal runaway phenomenon occurs inside the lithium ion battery pack, the electrolyte suction device extracts the electrolyte inside the housing lithiumion battery pack to avoid the further the intense reaction of the electrolyte in the lithium ion battery pack, thereby fundamentally cutting off the source of the thermal runaway reaction, and suppressing the development of the thermal runaway reaction from the inside of the lithium ion battery pack.
Description
technical field [0001] The present application relates to the technical field of lithium-ion batteries, in particular to a thermal runaway treatment system and method for lithium-ion battery packs. Background technique [0002] In recent years, the market share of electric vehicles has steadily increased. Lithium-ion batteries have excellent properties such as high voltage, high specific energy, long cycle life and no pollution to the environment, and have received great attention from the electric vehicle industry. However, flammable mixed gases, such as H2, CO or CH4, will be generated during thermal runaway of lithium-ion batteries, which will accumulate inside the battery. After reaching a certain pressure limit inside the lithium-ion battery, the safety valve is flushed open by the combustible gas mixture, which is released into the external environment as the battery erupts. During the eruption process of the battery, the surface temperature of the lithium-ion batter...
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IPC IPC(8): H01M10/48H01M2/36H01M10/058H01M50/691
CPCH01M10/058H01M10/486H01M50/691Y02E60/10Y02P70/50
Inventor 李伟峰王贺武欧阳明高张亚军李成李建秋卢兰光韩雪冰杜玖玉冯旭宁
Owner TSINGHUA UNIV