Heating device capable of acquiring voltage of lithium ion battery

Abstract

The invention discloses a heating device capable of acquiring the voltage of a lithium ion battery, and belongs to the technical field of lithium ion battery heating. The device is easy for heating the lithium ion battery for a new energy automobile, and has a high heating speed. The heating device comprises a lithium ion battery, a battery connection module, a battery management system, and a total voltage sensor, wherein the total voltage sensor can be used for detecting the power output interface voltage of the lithium ion battery; the lithium ion battery comprises a plurality of single batteries; each single battery is provided with a temperature sensor capable of detecting the temperatures of corresponding single batteries respectively; each single battery is further provided with a heating mechanism capable of heating the corresponding single batteries respectively; a control end of the battery connection module, the total voltage sensor, the temperature sensors and control ends of the heating mechanisms are connected with the battery management system respectively; and the battery connection module is further connected with the lithium ion battery.

Description

technical field [0001] The invention relates to the technical field of lithium ion battery heating, in particular to a heating device capable of collecting the voltage of the lithium ion battery. Background technique [0002] Most new energy vehicles use lithium-ion batteries to provide power, but because the electrolyte of lithium-ion batteries is an organic solute, the discharge capacity at low temperatures is very poor. However, some of the sales markets that new energy vehicles face belong to cold regions. If the temperature is too low and is lower than the operating temperature range of lithium-ion batteries, the vehicle will not be able to start. Heating device for ion battery heating. Contents of the invention [0003] The present invention aims to solve the above-mentioned deficiencies in existing lithium-ion batteries used in new energy vehicles, and provides a battery connection module that can sequentially connect the single cells in the lithium-ion battery in ...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the above-mentioned deficiencies in existing lithium-ion batteries used in new energy vehicles, and provides a battery connection module that can sequentially connect the single cells in the lithium-ion battery in series when the lithium-ion battery is not heated. Together, they become series batteries. When lithium-ion batteries are heated, the battery connection module can turn the series-connected batteries in the lithium-ion batteries into independent single batteries, which is easy for new energy vehicles. A heating device for lithium-ion batteries, a heating device that can collect the voltage of lithium-ion batteries with good heating uniformity, fast heating speed, and high safety

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