Intelligent battery module and battery pack with automatic balance capability

An intelligent battery and automatic balancing technology, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve the problems of increased volume, high cost, and large volume of battery packs, and achieve maximum life, maximum utilization, and The effect of convenient chaining

Active Publication Date: 2012-09-05
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method can improve the performance of the notebook battery, but because of the storage of redundant batteries, the volume of the battery p

Method used

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  • Intelligent battery module and battery pack with automatic balance capability
  • Intelligent battery module and battery pack with automatic balance capability
  • Intelligent battery module and battery pack with automatic balance capability

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[0034] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0035] As introduced in the background art, when the number of battery cells connected in series in the battery pack is large, it is almost impossible to improve the service life of the battery pack by screening and matching. Therefore, the object of the present invention is how to ensure the overall lifespan and reliability of the battery pack in this application.

[0036] figure 1 Shown is a specific embodiment of the intelligent battery module of the present invention. In an intelligent battery module, a limited number of battery cells, such as 1 to 5, are connected in series. In this way, based on a certain screening method, battery cells that are well matched to each other can be used to ensure their consistency. As mentioned above, in the case of fewer battery cells, mutual matching is feasible. If there is onl...

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Abstract

The invention relates to an intelligent battery module, and aims to provide an intelligent battery module and a battery pack with automatic balance capability. The intelligent battery module comprises a battery monomer or a battery pack formed by one battery monomer or formed by connecting n battery monomers in series, wherein the anode and the cathode of the battery monomer or the battery pack are connected to an input end of a DC(direct current)/DC converter; two output ends of the DC/DC converter serve as intelligent battery module outputs; the intelligent battery module also comprises a control circuit; the control circuit is provided with a communication interface circuit used for providing an indication signal for the control circuit; and the control circuit regulates output voltage of the intelligent battery module on the basis of the indication signal. According to the intelligent battery module and the battery pack, external power supply and internal charge can be realized by the DC/DC converter, the series connection can be conveniently realized, the balance between the battery modules is realized, and the maximum utilization and the maximum service life of battery storage energy can be realized.

Description

technical field [0001] The invention relates to an intelligent battery module, in particular utilizing the output regulation function of the intelligent battery module to realize the balance between the battery modules and the maximum utilization of stored energy. Background technique [0002] In applications such as new energy vehicles (electric vehicles or hybrid vehicles) and energy storage, batteries are widely used as energy storage units or functional units due to their high energy storage density and cost-effectiveness. Since the voltage provided by a single battery is low, it cannot meet the needs of practical applications in most cases. Therefore, in many cases, multiple batteries need to be connected in series or in parallel to meet the requirements of the system. Due to differences between battery cells connected in series, the service life of each cell is also different. When a single cell in the series-connected battery pack fails, the performance of the entire...

Claims

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Application Information

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IPC IPC(8): H02J7/34
Inventor 张军明
Owner ZHEJIANG UNIV
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