Safety protection device of lithium battery energy storage system

A technology of battery energy storage system and safety protection device, which is applied in secondary batteries, secondary battery repair/maintenance, circuits, etc., can solve problems such as poor space tightness, fire spread, and affect the fire extinguishing effect of lithium batteries, and achieve high efficiency. The effect of fire fighting costs

Inactive Publication Date: 2021-01-08
BEIJING DEYI XINNENG ELECTRICAL CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

The above schemes are all submerged gas fire extinguishing for the space where the energy storage system is located, and there are the following problems: due to the poor airtightness of the space, the fire extinguishing environment cannot be extinguished without reaching the fire extinguishing concentration; because the fire detect

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  • Safety protection device of lithium battery energy storage system
  • Safety protection device of lithium battery energy storage system
  • Safety protection device of lithium battery energy storage system

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[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] The lithium battery energy storage system is mainly composed of several lithium battery modules connected in series and parallel. , the internal temperature of the battery rises rapidly, and the high temperature triggers further violent reactions of chemical substances inside the battery, producing a large amount of gas, and the internal pressure increases sharply. It is some active substances and CO or CO2, containing flammable substances, which are ea...

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Abstract

The invention discloses a safety protection device of a lithium battery energy storage system, the battery energy storage system comprises a plurality of battery modules, the device comprises: a cabinet body, wherein the cabinet body comprises a plurality of mutually independent cavities, and the battery modules are distributed in the plurality of cavities; a plurality of smoke detectors which arearranged in the plurality of cavities and are used for detecting whether smoke occurs in the cavities for accommodating the smoke detectors or not; a plurality of smoke detectors which are connectedto the control device in parallel; and a fire extinguishing device which is used for accommodating a fire extinguishing agent and is arranged in the plurality of cavities, wherein when the temperaturein the cavities exceeds the temperature threshold value of the fire extinguishing device in the cavities, the fire extinguishing device releases the fire extinguishing agent. According to the safetyprotection device of the battery energy storage system, the fire signal is detected in the small space of the battery PACK layer, the fire extinguishing agent is automatically released, the efficientfire extinguishing effect can be achieved, and the safety performance of the lithium battery energy storage system is improved.

Description

technical field [0001] The invention relates to the field of lithium battery energy storage, in particular to a safety protection device for a lithium battery energy storage system. Background technique [0002] At present, more and more lithium battery energy storage systems have been used. Due to the material characteristics of lithium batteries themselves, the possibility of fire and combustion cannot be completely eliminated. Many cases of lithium battery energy storage system fire accidents at home and abroad have made people attach great importance to the safety of the lithium battery energy storage industry, and even restricted the development of the entire lithium battery energy storage industry. [0003] Existing fire-fighting solutions for the lithium battery energy storage industry mostly use heptafluoropropane as a fire extinguishing agent, and mostly use cabinet-type heptafluoropropane fire-extinguishing devices, hanging-type heptafluoropropane fire-extinguishin...

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Application Information

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IPC IPC(8): H01M10/42H01M10/48A62C3/16A62C35/13
CPCH01M10/42H01M10/482H01M10/48H01M10/486A62C3/16A62C35/13Y02E60/10
Inventor 张光昕梁建钢陈宁赵志军朱常在
Owner BEIJING DEYI XINNENG ELECTRICAL CO LTD
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