Le Hongjun: Dynamic lithium battery pack thermal out-of-control warning and fire extinguishing

Le Hongjun: Dynamic lithium battery pack thermal out-of-control warning and fire extinguishing

Dynamic lithium battery thermal out-of control performance includes two levels: one is the thermal out of control of the monomer battery, refers to the crane of the single battery exothermic linkage caused sharp changes in the battery self-temperature rise, irrabising, causing overheating, fire, explosion; Second, the thermal out of control of the battery pack, refers to a battery pack or a battery system short-circuit trigger a single battery or a battery module, which forms an “external high temperature environment” for adjacent cells, which causes heat of adjacent cells. out of control. “Power lithium battery safety is relatively, the power lithium battery will inevitably heat, although it can be controlled under normal state, but it will be out of control under very state.

. If there is a loss of failure, a fire accident will inevitably. Therefore, from the technical we must figure out, analyze the reason for out of control.

. Dr. Raymaster, deputy secretary general of Hubei Automobile Engineering Society, said.

Lei Hongjun, deputy secretary-general of Hubei Automobile Engineering Society, Ray Hongjun, on August 16, by the power lithium battery network, “Dynamic Lithium Battery” magazine, the Asia-powered “2017” 2017 third power lithium Battery Conference and Asian Power Lithium Battery and Energy Storage Technology Summit “successfully held in the No. 8 meeting room, the Guangzhou Pazhou International Convention Center. As a host, the Urban Secretary-General of the Hubei Provincial Automobile Engineering Society, Zi Hong, brought the topic of “Power Lithium Battery Group Heat Lenhe Early Warning and Fire Technology”.

Lei Hongzhen analyzed the path, the cause of the dynamic lithium battery is divided into: external cause, overcharge trigger, the external force causes thermal out-of control, overheating trigger heat loss, etc .;. To ensure absolute safety, you must use reliable technology to ensure that the thermal out of control of the power lithium battery is human controllable.

. “There are two ways to be feasible here. First, there is an early warning in advance.

When the heat loss of the dynamic lithium battery, artificial intervention can ensure that the thermal out of control will not bring terrible consequences; if the thermal out-of-control warning invalid, you must be equipped Automatic fire fighting. If you can do this, the safety of the power lithium battery pack is naturally guaranteed..

“Lei Hongzhen mentioned. Ray Hongjun also mentioned that the thermal out-of-control warning and fire extinguishing of the power lithium battery were unmatisfactory. It must have a small size, high performance, rapid start, instant fire; environmentally friendly, non-toxic and harmless; effective, long, transport Characteristics of horizon.

Effectively reduce the risk of thermal out-of control through intelligent judgment. .

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