Lithium battery for electric bicycle

Abstract

The invention discloses a lithium battery for an electric bicycle. The battery comprises a battery shell and a battery pack. The battery shell comprises a bottom shell and a main shell body with the outer surface coated with a temperature-sensing material layer, and the bottom shell is arranged under the main shell body. The battery pack comprises a first support, a second support, a third support and a fourth support which are sequentially arranged from top to bottom, and the inner sides of the first support, the second support, the third support and the fourth support are provided with forming nickel pieces respectively; a plurality of electric cores are installed between the first support and the second support and between the third support and the fourth support respectively; the electric cores between the first support and the second support are connected in series to form an upper layer electric core set together, the cores between the third support and the fourth support are connected in series to form a lower layer electric core set together, the upper layer electric core set and the lower layer electric core set are connected in parallel, and the second support and the third support tightly abut against each other. The lithium battery is simple in structure and quick and convenient to assemble, charging, discharging, serial connection and parallel connection of batteries can be quickly achieved, battery pack assembly efficiency is improved, and the lithium battery has electric quantity and temperature display and output functions.

Description

technical field [0001] The invention relates to a battery structure, in particular to a lithium battery for an electric bicycle. Background technique [0002] At present, the existing battery packs usually use ordinary plastic or aluminum barrels as casings, which are favored by more and more bicycle users because of their impact resistance, firmness, and easy installation and handling of bicycles. However, there are still the following defects in the assembly of existing batteries: (1) the structural assembly is relatively complicated, especially the combination and connection operation between the cells is relatively difficult, resulting in low assembly efficiency and complicated assembly; (2) the battery pack is bulky as a whole, It is not easy to take, and it is very inconvenient to carry and charge at home; (3) The battery pack will generate heat during charging and discharging, especially when the battery is charged at high temperature, it will shorten the service life...

AI Technical Summary

Problems solved by technology

However, there are still the following defects in the assembly of existing batteries: (1) the structural assembly is relatively complicated, especially the combination and connection operation between the cells is relatively difficult, resulting in low assembly efficiency and complicated assembly; (2) the battery pack is bulky as a whole, It is not easy to take, and it is very inconvenient to carry and charge at home; (3) The battery pack will generate heat during charging and discharging, especially when the battery is charged at high temperature, it will shorten the battery life, and when the battery is abnormally high temperature, it cannot (4) When the battery pack is abnormal, the electric car will stop working immediately, causing the user to push the car or use higher costs for maintenance; (5) The electric car with the battery pack cannot identify the battery power information, Moreover, the current 3C products have limited battery power, which cannot meet the needs of users when they go out.

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