A method for fire extinguishing and explosion protection of lithium ion electrochemical energy storage system
An energy storage system and electrochemical technology, applied in fire rescue and other fields, can solve the problems of tearing battery boxes, high hazards, explosions, etc., and achieve the effects of increasing safety protection, increasing safety, and improving detection accuracy
Active Publication Date: 2022-05-20
安徽中科久安新能源有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The combustible steam and internally decomposed combustible gas generated by the battery cell under the thermal runaway high temperature overflow from the safety valve, causing the battery box to tear or explode. A large amount of oxygen will participate in the combustion, which will lead to the expansion of thermal runaway, resulting in the formation of large-scale fires that are difficult to suppress , extremely dangerous
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will now be further described in detail in conjunction with the accompanying drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, so they only show the relevant components of the present invention.
[0016] According to the technical solution of the present invention, without changing the spirit of the present invention, those skilled in the art can propose multiple structural modes and implementation modes that can be replaced with each other. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the entirety of the present invention or as a limitation or restriction on the technical solution of the present ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a fire extinguishing and explosion-proof method for a lithium-ion electrochemical energy storage system, which includes setting up an electrochemical energy storage system and setting three levels of fire warning. In the electrochemical energy storage system, when the VOC concentration gradient, smoke When the concentration gradient exceeds the standard, the first-level early warning is activated; when the CO content exceeds the threshold, the second-level early warning is activated; when the temperature, pressure, CO, and VOC content all exceed the threshold, the third-level early warning is activated, and the fire extinguishing system is activated. This scheme is a full-cycle scheme of hierarchical fire early warning disposal from the early risk to the later disposal, which greatly increases the safety, increases the pressure detection to avoid the influence of the environment and working conditions, and greatly improves the detection accuracy. In addition, processing modules such as linkage fans, control cabinets, and pressure relief windows increase the safety protection of the entire system equipment.
Description
technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to a fire-extinguishing and explosion-proof method for a lithium-ion electrochemical energy storage system. Background technique [0002] Lithium-ion electrochemical energy storage systems in the society mainly use lithium iron phosphate and ternary lithium batteries, while lithium-ion batteries may experience thermal runaway phenomena due to manufacturing process defects and improper use, such as overcharge and overdischarge or mechanical abuse. , When the cell heat is out of control, the cathode material of the cell will produce a large amount of flammable and toxic gas. When the internal pressure of the cell reaches the operating pressure value of the safety valve of the single cell, the safety diaphragm of the safety valve of the single cell will tear. The combustible steam and internally decomposed combustible gas generated by the battery cell under the thermal ru...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): A62C3/16A62C37/36A62C37/38
CPCA62C3/16A62C37/36A62C37/38Y02E60/10
Inventor 姜可尚李煌叶光旭张艺超张清朋
Owner 安徽中科久安新能源有限公司