High-capacity lithium battery pack

Abstract

The invention relates to a high-capacity lithium battery pack, which is provided with a lithium battery pack (1), a charging interface, a discharging interface, a battery protection plate (2), an electric quantity indicating lamp (5), a charging fuse (6), a temperature control charging switch (7) and a discharging fuse (8), wherein the lithium battery pack (1) is formed by connecting a plurality of single battery cells in series; the charging interface and the discharging interface consist of female plugs (3a, 3b) and male plugs (4a, 4b); and the battery protection plate (2) is used for over charge, over discharge and over current protection and battery cell voltage balance of the lithium battery pack (1). Because the high-capacity lithium battery pack is adopted in the lithium battery pack, the lithium battery pack has the advantages of small volume, light weight, portability, easiness for carrying, high power capacity, high-energy density, high efficiency, high bearing capacity, long cycle life, low self-discharge rate, no memory effect, no pollution, excellent constant-voltage source performance and the like; and through the battery protection plate, adverse conditions of over charge, over discharge, over current, over high voltage of the single battery cells and the like are effectively prevented, the quality of the lithium battery pack is remarkably improved, and the lithium battery pack has the advantages of stable performance and long life.

Description

technical field [0001] The present invention relates to portable power source technology, more specifically, relates to a large-capacity lithium battery pack. Background technique [0002] The Battery Pack is a portable power supply with the advantages of large capacity, repeatable charge and discharge, etc. It can be used as an external power supply for various electrical equipment in outdoor and other occasions. Existing battery packs are mainly divided into lead-acid battery packs and lithium battery packs. The lead-acid battery pack has a large capacity, but its disadvantages are heavy weight, short cycle life, and pollution. Lithium battery packs are more common in the market now. Lithium batteries have the advantages of high efficiency, long life, no pollution, and no memory effect. However, the existing lithium battery packs also generally have the following disadvantages: first, the capacity is small, and the single use time is limited by the capacity of the lithiu...

AI Technical Summary

Problems solved by technology

However, the existing lithium battery packs also generally have the following disadvantages: first, the capacity is small, and the single use time is limited by the capacity of the lithium battery. ;Secondly, due to the characteristics of lithium battery materials, they are easily affected by users' overcharge, overdischarge or overcurrent; once abused by users, the performance of lithium batteries will drop sharply, and the life of lithium batteries will be affected.

The shortcomings of the above two aspects have seriously restricted the quality of existing lithium battery pack products and become a bottleneck in the development of lithium battery pack technology.

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