Improved lithium iron phosphate battery
A lithium iron phosphate battery and electrode technology, applied in the field of electricity, can solve the problems of affecting the electrochemical performance, flow out, and reducing the charge and discharge performance of the lithium battery, etc.
Inactive Publication Date: 2010-12-22
SHANGHAI RUIHUA GRP CORP
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AI Technical Summary
Problems solved by technology
During use, once the case bursts open due to excessive internal pressure of the battery, the electrolyte will flow out from the opening, which may lead to dangerous situations such as short circuit and fire
At present, the commonly used prevention method is to add chemical substances such as flame retardants to the battery electrolyte, which can reduce the possibility of smoking and burning to a certain extent, but at the same time, due to the addition of other substances, it will affect the electrochemical performance of lithium batteries. Reduce the charge and discharge performance of lithium batteries
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0008] The improved lithium iron phosphate battery of the present invention is composed of a tank body, a cover, an electrode and an electrolyte, the cover is sealed on the tank body, the electrodes and the electrolyte solution are arranged in the tank body, wherein the The electrolyte is in a gel state.
[0009] The working principle of this embodiment is: the electrolyte is in a gel state and becomes solid after being stabilized, so even if the battery explodes, there will be no liquid leakage, and there will be no smoking, burning and other phenomena caused by the leakage. Moreover, the solid gel electrolyte can play a certain sealing role, so even after the battery explodes, it can still maintain a certain capacity.
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The invention relates to an improved lithium iron phosphate battery, comprising a tank body, covers, an electrode and electrolyte. The covers are sealed on the tank body, the electrode and the electrolyte are arranged in the tank body, and the electrolyte is in a gel state. Because the electrolyte is in the gel state and is in a solid state after stabilization, no electrolyte leakage phenomenon occurs even if the battery is popped, and phenomena like smoking, burning and the like caused by electrolyte leakage cannot occur. In addition, the solid-state gel electrolyte plays a certain role of sealing, therefore, certain capacitance can be maintained even if the battery is popped.
Description
Technical field: [0001] The invention relates to the field of electricity, in particular to a chemical battery, in particular to an improved lithium iron phosphate battery. Background technique: [0002] In the prior art, a liquid organic electrolyte is provided in a lithium iron phosphate battery. During use, once the case bursts due to excessive internal pressure of the battery, the electrolyte will flow out from the opening, which may lead to dangerous situations such as short circuit and fire. At present, the commonly used prevention method is to add chemical substances such as flame retardants to the battery electrolyte, which can reduce the possibility of smoking and burning to a certain extent, but at the same time, due to the addition of other substances, it will affect the electrochemical performance of lithium batteries. Reduce the charge and discharge performance of lithium batteries. Invention content: [0003] The purpose of the present invention is to provi...
Claims
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Inventor 帅鸿元陆政德方翔宇孙乐
Owner SHANGHAI RUIHUA GRP CORP