Power battery low-temperature charging heating system

A power battery and heating system technology, applied in secondary batteries, secondary battery testing, secondary battery repair/maintenance, etc., can solve problems such as large temperature difference, reduced power battery performance and cycle life, etc., to reduce temperature difference, improve Performance and cycle life, and the effect of increasing the internal ambient temperature
CN105870542AInactive Publication Date: 2016-08-17深蓝汽车科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
深蓝汽车科技有限公司
Publication Date
2016-08-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a power battery low-temperature charging heating system which comprises a battery managing system, a power battery module, a heating power source, a heating assembly, a heating relay and an information collection device. The battery managing system, the heating relay and an information managing system form a control loop of the heating system. The heating assembly, the heating relay, the information collection device and the heating power source are in hard connection through a wire harness or a copper bar to form a heating loop of the heating system. The heating assembly can provide heat for the power battery module for heating when the power battery module is in a low-temperature environment. The battery managing system accurately adjusts the heating power of the heating assembly according to current, voltage, temperature and other information collected by the information collection device, the internal environment temperature of a power battery is rapidly improved, it is ensured that the power battery module is evenly heated, and the effect of lowering the temperature difference of the power battery module and parts is achieved, so that the performance of the power battery is improved, and the cycle life of the power battery is prolonged.
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Description

technical field

[0001] The invention relates to the technical field of power battery heating management, in particular to a power battery low-temperature charging heating system. Background technique

[0002] The power battery is the power source that provides the power source for the tool, and mostly refers to the battery that provides power for electric vehicles, electric trains, electric bicycles, and golf carts. As the main power source of new energy vehicles, the power battery has strict requirements on the working environment temperature. In order to meet the normal use across the country, the working environment temperature of the power battery is generally required to be -30°C-60°C. Affected by the material of the battery itself, when the ambient temperature of the power battery, especially the lithium-ion battery, is between 0°C and 5°C, the charging capacity of the power battery is weak at low temperatures, the charging internal resistance is too large, and the cha...

Claims

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