Battery management method, battery management device and equipment powered by battery

A battery management and battery technology, applied in the power supply field, can solve problems such as overcurrent and affecting cycle life

Active Publication Date: 2013-07-10
HUAWEI DIGITAL POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the generated bias current and circulating current will continue to change with the discharge process. Batteries with different capacities and materials have different real DOD (depth of discharge) during work, which affects their cycle life and also brings risk of overflow

Method used

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  • Battery management method, battery management device and equipment powered by battery
  • Battery management method, battery management device and equipment powered by battery
  • Battery management method, battery management device and equipment powered by battery

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Embodiment Construction

[0074] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0075] The embodiment of the present invention provides a battery management method for managing two or more batteries or battery packs connected in parallel in a circuit. Each battery or battery pack connected in parallel forms a parallel branch. road, figure 1 A circuit including two batteries connected in parallel is shown. In this circuit, battery 1 and battery 3 are connected in parallel, battery management unit 2 is used to manage b...

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Abstract

The invention provides a battery management method, a battery management device and equipment powered by a battery, and relates to the technical field of communication. Harmful effects caused by bias current and ring current can be controlled effectively, and the bias current and the ring current are generated when batteries or battery packs of different capacities and materials are directly utilized in parallel. The method is capable of managing two or more than two parallel batteries or battery packs in a circuit, and a parallel branch is formed by the branch where each parallel battery or battery pack is located. The method comprises: whether a current value of a target parallel branch is larger than a preset current value or not is detected; when the detected current value of the target parallel branch is larger than the preset current value, the current value of the target parallel branch is adjusted to be smaller than or equal to the preset current value. The battery management method is used for management of parallel batteries.

Description

Technical field [0001] The present invention relates to the field of power supply technology, and in particular to battery management methods, devices and battery-powered equipment. Background technique [0002] At present, there are two main types of batteries that are most used: one type is a primary battery that can be thrown away when used up and cannot be reused; the other type is a secondary battery that can be recharged and reused. At present, primary batteries mainly include: carbon-zinc batteries, alkaline batteries, paste-type zinc-manganese batteries, cardboard zinc-manganese batteries, alkaline zinc-manganese batteries, button batteries, zinc-air batteries, primary lithium-manganese batteries, mercury batteries, etc. Secondary batteries mainly include: lithium ion rechargeable batteries, nickel-cadmium rechargeable batteries, nickel-hydrogen rechargeable batteries, lead-acid batteries, etc. [0003] These batteries often need to be used in parallel. In the prior art, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0013H02J7/00304H02J7/00306H02J7/00302H02J7/007H02J7/04H02J7/00714
Inventor 钟正刘伟王兴杰
Owner HUAWEI DIGITAL POWER TECH CO LTD
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