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Lithium battery box, lithium battery pack and application thereof

A lithium battery and box technology, applied in lithium battery boxes and lithium battery packs and its application fields, can solve the problems of short battery life and inability to start lithium batteries, and achieve the effect of preventing translocation

Active Publication Date: 2020-09-22
蜂巢能源科技(马鞍山)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The invention provides a lithium battery box, the purpose of which is to solve the problems that the existing lithium battery has short battery life and cannot be started at low temperature

Method used

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  • Lithium battery box, lithium battery pack and application thereof
  • Lithium battery box, lithium battery pack and application thereof
  • Lithium battery box, lithium battery pack and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The lithium battery box of this embodiment includes a box body 100 and a base 200. The box body 100 is a cube with one side opening. 100 connection, after the installation is completed, the space formed by the box body 100 and the base 200 constitutes the cell position 300, and the lithium battery 400 is placed in the cell position 300, wherein the material of the box body 100 is thermal insulation polyurethane material, which has the function of thermal insulation , can reduce the temperature inside the box to spread outside the box, affecting the use of power-demanding equipment.

[0044] Specifically, heating wires 110 parallel to each other are evenly arranged on the inner wall of the box body 100, and the heating wires 110 are nickel-chromium alloy wires. The two sides of the box body 100 near the opening end are respectively provided with a heating wire positive electrode 111 and a heating wire negative electrode. 112, the positive electrode 111 of the heating wir...

Embodiment 2

[0047] Since the heating wire is directly fixed on the inner wall of the box, the heating wire 110 is easily damaged when the outside of the box is hit by an external force. Therefore, the lithium battery box of this embodiment is based on the first embodiment. The insulating layer 120 is ABS / pc material (the mixing mass ratio of ABS and pc material is 1:1.1, and this embodiment directly adopts the ABS / pc produced by Shenzhen Yasu Technology Co., Ltd.), which has strong mechanical properties and can It is resistant to the impact of external force, and while protecting the heating wire, it is also not easily damaged. It is an integrated structure with the box body 100, and the insulating layer 120 is evenly arranged on the inner wall of the box body 100 and arranged parallel to each other. The insulating layer 120 is hollow. The tubular structure, the number of insulating layers 120 is the same as the number of heating wires 110, and the heating wires 110 are inserted and arrang...

Embodiment 3

[0051] In the process of further research, the inventor found that since the lithium battery 400 is installed in the cell position 300 with a clearance fit, especially when the lithium battery 400 encounters an uneven road section when it is used as a power supply for an electric vehicle or electric bicycle, the lithium The lithium battery 400 in the battery box will be translocated, and the lithium battery 400 will inevitably have a slight expansion during the heating process. Although the volume change of the lithium battery 400 is very small at this time, it will still cause heating. The positive and negative electrodes of the wire 110 and the positive and negative electrodes of the lithium battery 400 are translocated, resulting in poor contact. Therefore, on the basis of Embodiment 2, the lithium battery box of this embodiment is provided with insulating partitions 130 on both sides of the insulating layer 120, that is, an installation space for the insulating layer 120 is...

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Abstract

The invention discloses a lithium battery box, a lithium battery pack and an application thereof, and belongs to the technical field of lithium batteries. The box comprises a box body and a base, wherein the box body is detachably connected with the base; the box body and the base are connected to form a battery cell position; a plurality of heating wires are uniformly arranged on the inner wall of the box body; each heating wire is wrapped with an insulating layer, a plurality of insulating partition plates are further arranged on the inner wall of the box body, and an insulating layer installation space is formed between every two adjacent insulating partition plates, wherein the thickness of each insulating partition plate is greater than the diameter of the corresponding insulating layer, and the two ends of each heating wire are electrically connected with the heating wire positive electrode and the heating wire negative electrode respectively. According to the lithium battery box, on the basis of an existing battery box, the heating wire is arranged in the lithium battery box, the whole lithium battery can be heated in severe cold winter, the temperature in the battery box can be as high as spring in severe cold winter, and the problems that an existing lithium battery electric bicycle is weakened in cruising ability in winter, shortened in service life and the like are solved.

Description

technical field [0001] The invention belongs to the technical field of lithium batteries, and more specifically relates to a lithium battery box, a lithium battery pack and applications thereof. Background technique [0002] Due to the emergence of the global energy crisis, energy-saving and environmentally friendly new energy vehicles have emerged. With the widespread application of lithium batteries in the field of new energy vehicles, the problem of battery life in winter has gradually emerged. Under the same amount of electricity, different temperatures emit different amounts of electricity, resulting in reduced battery life and great inconvenience to people's lives. There is an urgent need for a new type of electric bicycle box on the market that can solve this problem. [0003] At present, there are many lithium battery pack products on the market that add a heating film inside the battery, directly acting on the battery cell, and heating it during the charging process...

Claims

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Application Information

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IPC IPC(8): H01M10/615H01M10/625H01M10/6571H01M10/658H01M10/635H05B3/56
CPCH01M2220/20H05B3/56H01M10/615H01M10/625H01M10/635H01M10/6571H01M10/658Y02E60/10
Inventor 胡治怿李航王明凯周仁全冯莉
Owner 蜂巢能源科技(马鞍山)有限公司
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