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

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

Active Publication Date: 2015-06-17
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 following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0075] The embodiment of the present invention provides a battery management method, which is used to manage two or more batteries or battery packs connected in parallel in a circuit. road, figure 1 A circuit including two batteries connected in parallel is shown, in which battery 1 and battery 3 are connected in parallel, battery management unit 2 is used to manage battery 1 , and battery management unit 4 is used to manage battery 3 . This embodiment takes figu...

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Abstract

Embodiments of the present invention provide a method and an apparatus for battery management and a battery-powered device, which relate to the field of communications technologies and can effectively control an adverse impact resulting from a bias current and a circulating current that are caused when batteries or battery groups of different capacities or different materials are directly connected in parallel for use. The method is used for management over two or more than two batteries or battery groups connected in parallel on a circuit, a branch circuit where each battery or battery group connected in parallel is located forms one parallel branch circuit, and the method includes: detecting whether a current value on a target parallel branch circuit is greater than a preset current value; and when the detected current value on the target parallel branch circuit is greater than the preset current value, adjusting the current value on the target parallel branch circuit so that the current value on the target parallel branch circuit is smaller than or equal to the preset current value, thereby performing management over batteries connected in parallel.

Description

technical field [0001] The invention relates to the technical field of power supplies, in particular to a battery management method, device and equipment powered by batteries. Background technique [0002] Currently, there are two types of batteries that are most widely used: one is a primary battery that is disposable and cannot be reused; the other 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-metal hydride rechargeable batteries, lead-acid batteries, etc. [0003] These batteries often need to be used in parallel. In the prior art, the batteries or batte...

Claims

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Application Information

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Patent Type & Authority Patents(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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