Constant-voltage 1.5 V lithium battery and assembling method thereof

Abstract

The invention relates to a constant-voltage 1.5 V lithium battery and an assembly method thereof, the lithium battery comprises a battery shell, a battery cap, a cylindrical battery cell, a lithium battery protection plate, a sealing ring and highland barley paper, the battery cap is attached to the top surface of the lithium battery protection plate as battery anode output, and the lower part ofthe lithium battery protection plate is connected with an anode wire and is connected with the anode of the battery cell through a nickel sheet; the sealing ring sleeves the lithium battery protectionplate and arranged in the battery shell, the highland barley paper is attached to the bottom of the sealing ring, and the lithium battery protection plate comprises an integrated circuit U1, a voltage reduction inductor L1, capacitors C1 and C2 and a resistor R1. According to the invention, the battery cap is pasted on the top surface of the lithium battery protection plate through the chip mounting process to form the whole output of the battery, so that the internal structure of the battery is greatly simplified, most space is saved for the design of the whole circuit while the work is completed, and the production and assembly process is relatively simple; and the product also has the characteristics of over-charge, over-discharge, over-current, over-temperature and short-circuit protection functions, high capacity, stable battery output voltage, long service life and the like.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a constant voltage 1.5V lithium battery and an assembly method thereof. Background technique [0002] At present, there are many fields in the market that need to use AA batteries (AA batteries), including electric toothbrushes, shavers, wireless microphones, doorbells, toys, etc., among which alkaline batteries and Ni-MH batteries are the main ones. Although the two types of batteries are convenient to use, they have a short lifespan and low capacity, and can only be used once and thrown away after use, which is likely to cause environmental pollution and is very unfriendly to the environment; in response to this situation, there are many recyclable batteries on the market. The battery (AA1.5V lithium battery), its circuit structure is mainly composed of 3 discrete devices: (1) linear charge management ic, (2) battery 4.2v step-down to 1.5V constant voltage output ic, (3) over...

AI Technical Summary

Problems solved by technology

[0002] At present, there are many fields in the market that need to use AA batteries (AA batteries), including electric toothbrushes, shavers, wireless microphones, doorbells, toys, etc., among which alkaline batteries and Ni-MH batteries are the main ones. Although the two types of batteries are convenient to use, they have a short lifespan and low capacity, and can only be used once and thrown away after use, which is likely to cause environmental pollution and is very unfriendly to the environment; in response to this situation, there are many recyclable batteries on the market. The battery (AA1.5V lithium battery), its circuit structure is mainly composed of 3 discrete devices: (1) linear charge management ic, (2) battery 4.2v step-down to 1.5V constant voltage output ic, (3) over-discharge Protect the ic; and the lithium battery of this structure also has the following disadvantages:

[0003] 1. Large self-consumption;

[0004] 2. There are many components, the circuit is complicated, and the stability of electrical performance is not high;

[0005] 3. The process of production and assembly is complex and prone to problems

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