Anti-overheating lithium battery
A lithium battery, anti-overheating technology, applied in secondary batteries, battery pack components, circuits, etc., can solve safety hazards, lithium battery overheating, combustion and other problems, to eliminate safety hazards, suspend battery reaction, eliminate or even explode Effect
Inactive Publication Date: 2019-08-20
胡振强
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Problems solved by technology
[0002] People often use batteries in daily life, among which lithium batteries are popular because of their high energy density and high cycle life; Overheating will cause combustion or even explosion, which has certain safety hazards
Method used
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[0009] Below in conjunction with accompanying drawing and embodiment the present invention is further described:
[0010] exist figure 1 In the shown embodiment, the overheating prevention lithium battery includes a casing 1, and the casing 1 includes a battery cavity 2 containing a battery inner core 20; an insulating oil cavity sealed with insulating oil is provided below the battery cavity 2 3. An expansion chamber 4 and a dry ice chamber 5 are sequentially arranged below the insulating oil chamber 3; the battery chamber 2 and the insulating oil chamber 3 are separated by a partition plate 7, and the partition plate 7 is provided with a pressure relief hole 70; the insulating oil chamber 3 and the expansion chamber 4 are separated by a piston plate 8; the expansion chamber 4 and the dry ice chamber 5 are connected by a thimble valve 50; Straight downward hydraulic cylinder 6, the hydraulic cylinder 6 is sealed with thermal expansion and cold contraction fluid, the piston 6...
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The invention provides an anti-overheating lithium battery. The anti-overheating lithium battery comprises a shell, the shell comprises a battery cavity containing a battery inner core; the lower portion of the battery cavity is provided with an insulation oil cavity, an expansion cavity and a dry ice cavity which are arrange in order; the battery cavity and the insulation oil cavity are separatedfrom each other by a separator, and a pressure relief hole is formed on the separator; the insulation oil cavity and the expansion cavity are separated from each other by a piston plate; the expansion cavity is connected with the dry ice cavity through a thimble valve; the battery cavity is internally provided with a vertically downward hydraulic cylinder, an expansion and contraction liquid is sealed in the hydraulic cylinder, a piton in the hydraulic cylinder is downwards connected with a top rod extended to the upper portion of the thimble valve, when the expansion and contraction liquid is at a temperature of larger than 70 DEG C, the piston and the top rod are pushed to open the thimble valve to allow the dry ice in the dry ice cavity to enter the expansion cavity and perform vaporizing expansion to push the piston plate at the upper portion of the expansion cavity and press the insulation oil in the insulation oil cavity into the battery cavity through the pressure relief hole.The lithium battery can timely respond to the condition that the internal portion of the battery is overheat to eliminate the potential safety hazard and improve the safety factor of the battery.
Description
technical field [0001] The invention relates to the field of batteries, in particular, to a lithium battery. Background technique [0002] People often use batteries in daily life, among which lithium batteries are popular because of their high energy density and high cycle life; Overheating can cause combustion or even explosion, which poses certain safety hazards. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide an overheating-proof lithium battery, which can respond in time when the battery is overheated, eliminates the hidden danger of combustion or even explosion, and improves the safety factor of the battery. [0004] The technical solution adopted by the present invention to solve the technical problem is: the overheating prevention lithium battery includes a casing, and the casing includes a battery chamber containing the inner core of the battery; an insulating oil chamber sealed with insulating o...
Claims
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IPC IPC(8): H01M2/12H01M10/0525
CPCH01M10/0525H01M50/325Y02E60/10
Inventor 胡振强
Owner 胡振强