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Battery state monitoring circuit, method, device and system, and vehicle

A technology for battery status and monitoring circuits, which is applied in battery/fuel cell control devices, electric vehicles, vehicle energy storage, etc.

Inactive Publication Date: 2020-11-20
SVOLT ENERGY TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This partly solves the problem that the thermal runaway of the battery cannot be monitored in the dormant state, but the battery status cannot be monitored full-time. In addition, during the BMS wake-up interval, that is, when the electric vehicle / energy storage system is dormant and the BMS is dormant, there are still faults. Risk of undetected thermal runaway failure

Method used

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  • Battery state monitoring circuit, method, device and system, and vehicle
  • Battery state monitoring circuit, method, device and system, and vehicle
  • Battery state monitoring circuit, method, device and system, and vehicle

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Embodiment Construction

[0031] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0032] Embodiments of the present disclosure provide a battery state monitoring circuit, method, device, system, and vehicle. The technical solutions provided by the present disclosure will be described in detail below in conjunction with specific embodiments.

[0033] figure 1 is a structural block diagram of a battery state monitoring circuit provided by an embodiment of the present disclosure, such as figure 1 As shown, the battery status monitoring circuit 10 includes a resistor-capacitor timing module 11 , a voltage monitoring module 12 electrically connected to the resistor-capacitor timing module 11 , and a wake-up module 13 electrically connected to ...

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Abstract

The invention relates to a battery state monitoring circuit, method, device and system, and a vehicle, which are used for comprehensively monitoring a battery state with low power consumption in realtime so as to reduce a risk of battery thermal runaway faults. The circuit state monitoring circuit comprises a resistor-capacitor timing module, a voltage monitoring module electrically connected with the resistor-capacitor timing module, and a wake-up module electrically connected with the voltage monitoring module. The voltage monitoring module is used for monitoring whether a battery voltage state is abnormal, and the wake-up module is used for awakening a battery management system.

Description

technical field [0001] The present disclosure relates to battery management technology, in particular, to a battery state monitoring circuit, method, device, system and vehicle. Background technique [0002] With the improvement of battery energy density, safety issues in the new energy industry have become increasingly prominent. For example, the biggest hazard to electric vehicles / energy storage systems is battery thermal runaway failure. As far as the thermal runaway failure of the battery is concerned, the main reason is that the internal short circuit and external short circuit of the battery are caused by lithium dendrites in the battery. It is mainly characterized by the dissolution of the SEI (Solid Electrolyte Interface) film of the negative electrode of the battery, and the internal Contains ingredients that directly react exothermicly with the electrolyte, causing a sharp rise in internal temperature, which in turn causes the battery to catch fire and explode. Th...

Claims

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Application Information

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IPC IPC(8): B60L58/10B60R16/023
CPCB60L58/10B60R16/023Y02T10/70
Inventor 颜广博郑河星
Owner SVOLT ENERGY TECHNOLOGY CO LTD