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Lithium battery system

A lithium battery and power supply technology, which is applied in the field of lithium battery systems, can solve problems such as high material cost and manufacturing cost, increased product price, poor applicability and cost performance of lithium battery packs, etc., to improve applicability, cost performance, and reliability Sex and safety, and the effect of enhancing the sense of experience

Pending Publication Date: 2021-08-03
SHENZHEN CENT POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since each lithium battery pack is equipped with a protection board, when multiple lithium battery packs are connected in series or in parallel to form a larger battery pack for use, it is easy for the lithium battery packs to interact with each other, resulting in frequent triggering of the lithium battery pack protection mechanism , the user experience is poor; and due to the existence of multiple protection boards, the material cost and manufacturing cost of the lithium battery pack are relatively high, which greatly increases the selling price of the product
[0003] At present, the supporting batteries for small UPS and power equipment are mainly lead-acid batteries, and its internal space structure has extremely high requirements on the size of the replacement lithium battery pack. There is an independent battery protection board, so that the applicability and cost performance of lithium battery packs used in series and parallel with UPS or power supply equipment are inferior to those of lead-acid batteries.
Moreover, since lithium battery packs are equipped with separate protection boards, when boosting or capacity expansion is required, more lithium battery packs must be connected in series or in parallel to meet the needs of boosting or capacity expansion; and due to the existence of multiple protection boards, This makes the material cost and manufacturing cost higher, and greatly increases the cost of using the lithium battery pack
At the same time, since the charging and discharging of each lithium battery pack is independently managed by its own protection board, the differences between the individual cells in each lithium battery pack will become larger and larger during long-term use, which will easily lead to The trigger frequency of the lithium battery pack protection mechanism has increased significantly, which has brought great troubles to end users

Method used

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are used to explain the present invention rather than limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0022] In addition, the terms first, second, third, etc. in the specification and claims are only used for the descriptive purpose of distinguishing the same technical feature, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the indicated technical feature Quantities, nor necessarily descriptive sequence or chronological order. The terms are interchangeable under appropriate circumstances. Thus, the features defined as "first" and "second" may explicitly or implicitly i...

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Abstract

The embodiment of the invention discloses a lithium battery system, and belongs to the technical field of batteries. The lithium battery system comprises a power supply assembly, a plurality of first lithium battery packs and a plurality of first equalization plates, wherein the first lithium battery packs and the first equalization plates are connected in a one-to-one correspondence manner; the plurality of first lithium battery packs are connected in series to form a first connecting end and a second connecting end, and the first connecting end and the second connecting end are respectively connected with the power supply assembly; and the first lithium battery pack is a lithium battery pack consisting of lithium iron phosphate cells. The lithium battery system can be used in cooperation with a small UPS device and other power supply devices through matching of the equalization board and the external fuse, the safety and reliability of the whole lithium battery system or branch circuit are achieved through charging voltage limiting and discharging low-voltage protection of the UPS and other power supply devices, normal operation of other branch circuits is not affected, and the lithium battery system is low in cost. And the applicability and the cost performance of the lithium battery pack on a small UPS and other power supply equipment are effectively improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of batteries, and in particular to a lithium battery system. Background technique [0002] A lithium battery pack generally consists of a battery cell, a protective plate, connecting parts, and a housing container. Since each lithium battery pack is equipped with a protection board, when multiple lithium battery packs are connected in series or in parallel to form a larger battery pack for use, it is easy for the lithium battery packs to interact with each other, resulting in frequent triggering of the lithium battery pack protection mechanism , the user experience is poor; and due to the existence of multiple protection boards, the material cost and manufacturing cost of the lithium battery pack are relatively high, which greatly increases the selling price of the product. [0003] At present, the supporting batteries for small UPS and power equipment are mainly lead-acid batteries, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02H7/18
CPCH02H7/18H02J7/0016H02J7/0029H02J7/00302H02J7/00306H02J7/007182
Inventor 黄恭衣守忠张华农
Owner SHENZHEN CENT POWER TECH
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