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Lithium ion power battery light-weight low-temperature heating system

A lithium-ion battery pack, power battery technology, applied in secondary batteries, electrochemical generators, battery circuit devices, etc., can solve the problems of continuous heating, battery thermal runaway, etc., to avoid dry burning, easy to carry, avoid battery Effects of Thermal Runaway Accidents

Inactive Publication Date: 2018-08-17
TIANJIN ENERGIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention aims to propose a lightweight low-temperature heating system for lithium-ion power batteries to solve the problem of continuous heating and battery thermal runaway when the existing lithium-ion power batteries are heated

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  • Lithium ion power battery light-weight low-temperature heating system
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  • Lithium ion power battery light-weight low-temperature heating system

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Embodiment Construction

[0028] It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other if there is no conflict.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer" etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified, rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be und...

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Abstract

The invention provides a lithium ion power battery light-weight low-temperature heating system. The lithium ion power battery light-weight low-temperature heating system comprises a lithium ion battery pack and a heating film group for heating the lithium ion battery pack; the heating film group is connected with temperature control elements in series; and each temperature control element is a conductor with a melting point or a chemical thermal sensitive switch. According to the lithium ion power battery light-weight low-temperature heating system disclosed in the invention, when a low-temperature heating system suffers from a fault or when a relay suffers from adhesion, a heating film heats constantly, and when the heated temperature reaches the melting point of the conductor or the rated temperature of the chemical thermal sensitive switch of the temperature control element, the conductor is fused or the chemical thermal sensitive switch is switched off to disconnect the heating circuit, so that a battery thermal runaway accident caused by continuous temperature rise can be avoided effectively.

Description

Technical field [0001] The invention belongs to the technical field of battery heating, and in particular relates to a lightweight low-temperature heating system for a lithium-ion power battery. Background technique [0002] The low-temperature heating device of lithium-ion power battery is an important part of ensuring the normal start of the battery system in a low-temperature environment. At present, the low-temperature heating of the power battery adopts PTC (Positive Temperature Coefficient) heaters, but PTC has the following disadvantages: First, the quality is relatively heavy. It is not conducive to the light weight of the battery system; second, the cost is high. Another heating method is to use traditional heating film, which also has certain defects. When working at low temperature, the heating and dry heating temperature is not easy to control, and there is a risk of thermal runaway. Summary of the invention [0003] In view of this, the present invention aims to prov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/615
CPCH01M10/4207H01M10/4257H01M10/615H01M2010/4271Y02E60/10
Inventor 伊炳希卢一梁宏伟陈保国从长杰王驰伟
Owner TIANJIN ENERGIES
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