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Lithium battery for low-temperature zone

A lithium battery, zone technology, applied in secondary batteries, battery pack components, circuits, etc., can solve problems such as weak discharge performance, and achieve the effect of comprehensively improving speed and good discharge performance

Pending Publication Date: 2020-09-08
凌枭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of weak discharge performance of lithium batteries in low temperature environment in the prior art, and propose a lithium battery for low temperature zone

Method used

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  • Lithium battery for low-temperature zone
  • Lithium battery for low-temperature zone

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Embodiment

[0020] refer to Figure 1-2 , a lithium battery for a low-temperature zone, comprising a casing 1, an inner core 2, a positive electrode 3 and a negative electrode 4, the inner wall of the casing 1 is fixed with a plurality of shock absorbing springs 13, and the plurality of shock absorbing springs 13 are jointly fixed with a control block 5 , the shock absorbing spring 13 plays an all-round buffering role on the control block 5, so that the slight external shaking and impact will not have an effect on the control block 5, so that the control block 5 maintains a stable state, so that the internal environment of the battery during transportation Not affected, the inside of the control block 5 is provided with a heating chamber 6 and a heat storage chamber 7, the side wall of the casing 1 is provided with a heat transfer chamber 10, and the inner wall of the heat storage chamber 7 is inserted with an air intake pipe 11 and an exhaust pipe 12 , the intake pipe 11 and the exhaust ...

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Abstract

The invention discloses a lithium battery for a low-temperature zone. The battery comprises a shell, an inner core, a positive electrode and a negative electrode, wherein a plurality of damping springs are fixed to the inner wall of the shell, a control block is jointly fixed to the plurality of damping springs, a heating cavity and a heat storage cavity are formed in the control block, a heat transfer cavity is formed in the side wall of the shell, an air inlet pipe and an air outlet pipe are inserted into the inner wall of the heat storage cavity in a penetrating mode, and the air inlet pipeand the air outlet pipe are symmetrically arranged and communicated with the interior of the heat transfer cavity. The lithium battery has the advantages that the heating cavity is filled with a sodium acetate supersaturated solution, the sodium acetate supersaturated solution can be stimulated to start to separate out crystals after the battery is subjected to artificial oscillation in an initial working stage, and a large amount of heat can be released in the process, so that the interior of the battery is heated, the battery can overcome the external cold environment, and good discharge performance in the initial power supply stage of the battery is guaranteed.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a lithium battery for low-temperature regions. Background technique [0002] In the battery industry, technological performance breakthroughs are limited by many external conditions, especially temperature conditions. A good operating temperature is the prerequisite for safe and efficient operation of the battery, and battery temperature is a key factor restricting the improvement of battery performance; [0003] In low-temperature regions such as northern my country, the outdoor temperature in winter can often reach about -30°C, while the most commonly used lithium battery operating temperature in real life is -20°C to 60°C, but generally lower than 0°C. It will drop, and the discharge capacity will decrease accordingly, which will easily lead to the failure of the battery to supply normal and stable power to the outside world in the early stage of use. [0004] At present, th...

Claims

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Application Information

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IPC IPC(8): H01M10/615H01M10/654H01M10/6569H01M2/10
CPCH01M10/615H01M10/654H01M10/6569Y02E60/10
Inventor 凌枭
Owner 凌枭
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