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Energy storage type lithium battery pack battery management system and control method

A technology of battery management system and lithium battery pack, which is applied in the direction of battery temperature control, battery disconnection circuit, battery circuit device, etc., can solve the problems of low integration, poor reliability, low matching degree, etc., to avoid overcharging, safety and life realization, avoiding the effect of over-discharge or unreasonable discharge

Pending Publication Date: 2020-08-14
南京清研海易新能源动力有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the shortcomings of traditional battery management systems such as single function, low integration, low matching, and poor reliability, the present invention provides a battery management system for lithium battery packs with complete functions, high integration, centralized strategies, and high reliability.

Method used

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  • Energy storage type lithium battery pack battery management system and control method
  • Energy storage type lithium battery pack battery management system and control method

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Embodiment Construction

[0036] The technical solution of the present invention will be further described in detail through embodiments in conjunction with the accompanying drawings:

[0037] An energy storage type lithium battery pack battery management system, including a charging input terminal 1, a charging relay control terminal 2, a charging voltage collection terminal 3, a communication terminal 4, a load request switch input terminal 5, a single cell voltage collection line 6, Battery management unit 7, temperature sensor collection line 8, temperature sensor 9, battery module 10, battery pack negative electrode 11, cooling system 12, heating system 13, cooling power input 14, heating power input 15, lithium battery cell group 16. Temperature management relay control terminal 17, load relay control terminal 18, battery pack positive electrode 19, power output terminal 20, output terminal current sensor 21, input terminal current sensor 22, charger input terminal 101, charging relay 201, load reque...

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Abstract

The invention provides an energy storage type lithium battery pack battery management system. The system comprises a charging input end, a charging relay control end, a charging voltage acquisition end, a communication end, a load request switch input end, a single cell voltage acquisition line, a battery management unit, a temperature sensor acquisition line, a temperature sensor, a battery module, a battery pack cathode, a cooling system, a heating system, a cooling power supply input end, a heating power supply input end, a single lithium battery pack, a temperature management relay control end, a load relay control end, a battery pack anode, a power output end, an output end current sensor and an input end current sensor. The system is complete in functions, high in integration level,centralized in strategy and high in reliability.

Description

Technical field: [0001] The invention relates to a battery management system and a control method for an energy storage type lithium battery pack, in particular to a multi-level battery state monitoring system for low-voltage energy storage type lithium battery packs used in trucks, buses, RVs and home environments Battery management system for charge and discharge management, temperature management, etc. Background technique: [0002] Electric energy is inseparable in people's life or work. In some environments with limited power supply, electric energy storage devices are usually needed to realize the storage, transportation, and time-sharing applications of electric energy. At present, the commonly used methods of converting electrical energy into mechanical energy, chemical energy, and electric field energy are commonly used for storage. The energy density, power density, cost, and conversion efficiency of energy storage devices affect the application and promotion. Chemical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H01M10/42H01M10/44H01M10/48H01M10/60G01R31/382G01R31/396
CPCG01R31/382G01R31/396H01M10/425H01M10/441H01M10/482H01M2010/4271H02J7/0031H02J7/0063H01M10/60Y02E60/10
Inventor 王玉海李连强张鹏雷王松
Owner 南京清研海易新能源动力有限责任公司
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