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In-parallel type power battery pack

A power battery pack and parallel connection technology, which is applied to battery pack parts, secondary battery repair/maintenance, circuits, etc., can solve the problems of unfavorable battery monomer precise management, poor battery pack safety, poor safety, etc., to improve unfavorable impact, improved safety, and high reliability

Inactive Publication Date: 2012-10-10
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Using wires as parallel components is the current mainstream configuration, but in the case of battery short-circuit failure, the safety of the battery pack is poor, and the battery management system cannot independently collect the voltage information of the battery cells, which is not conducive to the battery cell precise management of
[0004] It can be seen from the above that the traditional power battery group technology has disadvantages such as low reliability, poor safety, and is not conducive to the precise management of battery cells.

Method used

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Embodiment Construction

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0023] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicat...

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Abstract

The invention provides an in-parallel type power battery pack, which comprises single batteries and parallel elements, the single batteries are divided into N packs, each pack of single batteries have M single batteries, each pack of M single batteries are in series in order, wherein N and M are integers more than or equal to 2; the parallel elements are divided into e packs; each pack of parallel elements have M-1 parallel elements, a first end of the ist parallel element in the eth pack of parallel elements is connected between the ist single battery and the i+1th single battery of the eth pack of single batteries in the Nth pack, and a second end of the ist parallel element in the eth pack of parallel elements is connected between the ist single battery and the i+1th single batterey of the e+1th pack of single batteries, and N packs of single batteries are connected in parallel through a plurality of parallel elements. The in-parallel type power battery pack has the advantage of good security and high reliability, and each single battery can be accurately managed.

Description

technical field [0001] The invention relates to the technical field of power batteries, in particular to a parallel-connected group-type power battery pack. Background technique [0002] At present, most automobiles mainly use internal combustion engines such as diesel engines or gasoline engines as power sources. However, with the depletion of global oil resources and the increasingly severe environmental problems such as the greenhouse effect, countries are paying more and more attention to energy and environmental issues, and have introduced more and more stringent Therefore, in this context, new energy vehicles must be vigorously developed. Among them, due to the wide range of power sources and relatively mature battery and motor technologies, electric vehicles (including pure electric vehicles and hybrid vehicles) gradually show their advantages, are recognized by more and more people, and become a major development trend in the future . In order to meet the needs of ...

Claims

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Application Information

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IPC IPC(8): H01M2/20H01M10/42
CPCY02E60/12Y02E60/10
Inventor 欧阳明高韩雪冰卢兰光李建秋
Owner TSINGHUA UNIV
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