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Lithium-ion secondary battery

A secondary battery, lithium ion technology, applied in the direction of secondary battery, secondary battery repair/maintenance, battery pack components, etc., can solve the problems of difficult integration, small size, unreasonable structure, etc., to simplify the process Operational requirements, enhanced punch resistance, quick assembly and positioning effects

Active Publication Date: 2022-03-18
NAT ENG RES CENT OF ADVANCED ENERGY STORAGE MATERIALS SHEN ZHEN LTD CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing integration methods have the following problems: firstly, the integration process is complicated
Due to the need for various components such as integrated circuit boards, circuit components, protective casings, input interfaces, and output interfaces, the integration is relatively difficult, and the integration effect and appearance are not ideal. The existing integration methods often lead to complex processing techniques and space constraints. Low utilization rate and poor appearance
The second is that the efficiency of integration is not high. The existing method of setting auxiliary structural parts has low integration efficiency. Various auxiliary structural parts usually occupy a large amount of battery internal space, resulting in only small-sized low-capacity batteries. Compared with the primary battery, the capacity advantage of the integrated lithium-ion secondary battery is not obvious
Especially for small-sized batteries, such as AAA-type batteries, due to the overall small size of the battery, it is difficult to integrate
The third is that the reliability of integration is not high, unreasonable structure, complex processing technology, low integration efficiency, many factors lead to the overall reliability of the final integrated battery is not high

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0051] Taking the production of a cylindrical lithium-ion secondary battery with a constant voltage output and a MicroUSB charging interface as an example, this paper further elaborates on the structure and function of the lithium-ion secondary battery, and at the same time explains the lithium-ion secondary battery The realization method of high integration efficiency, high capacity and high reliability.

[0052] A lithium-ion secondary battery, which is cylindrical (its overall dimensions must meet the requirements of the R03 model size specification required by the "IEC60086-2:2011" standard), and its requirements are: battery diameter ≤ 10.5mm, battery height H ≤ 44.5mm, the battery has its own MicroUSB interface charging function; it has charge management function; it has charge protection and discharge protection functions (discharge undervoltage protection, charge overvoltage protection, charge overcurrent protection, discharge overcurrent protection, short circuit prote...

Embodiment 2

[0083] A lithium-ion secondary battery, the structure of which is similar to that of the lithium-ion secondary battery in Example 1, except that the constant output voltage is 1.50V, and the specification of the third resistor R3 is 4K ± 1%. The maximum charging current corresponding to the lithium-ion secondary battery is 156mA.

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Abstract

The invention provides a lithium-ion secondary battery, comprising a lithium-ion cell, a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, Steel shell, MicroUSB interface, protection IC, integrated IC, inductor, LED lamp, plastic parts, rigid FR‑4 substrate and metal cap, realize MicroUSB interface rechargeable, constant voltage output, charging management and protection, overcharge, overdischarge and overcurrent Protection of all-in-one functions. Compared with the prior art, the lithium ion secondary battery of the present invention has simple structure, easy installation, high integration efficiency, high reliability, multiple functions, high capacity and low cost.

Description

technical field [0001] The invention relates to a lithium-ion secondary battery, in particular to a lithium-ion secondary battery with its own MicroUSB interface and charging input function, which integrates constant voltage output, charging management and charging protection, and battery protection (including overcharge protection, overdischarge protection, Over-current protection) and other functions, while also having a high-capacity single-plate lithium-ion secondary battery. Background technique [0002] In the process of actual use of lithium-ion secondary batteries, it is often necessary to integrate corresponding charging circuits, protection circuits, interfaces, structural parts, etc., on the one hand, to meet the needs of lithium-ion secondary battery safety management and protection, on the other hand, to In order to meet the needs of functional applications. For example, the constant voltage 1.5V output circuit can be integrated with the lithium-ion secondary b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/24H01M50/244H01M50/271H01M10/0525H01M10/42H01M50/147H01M50/20H01M50/213
CPCH01M10/425H01M10/0525H01M2010/4271H01M50/147H01M50/213H01M50/20Y02E60/10
Inventor 钟发平刘宏兵陈晓峰陈鹏飞龚颖林胡顺华
Owner NAT ENG RES CENT OF ADVANCED ENERGY STORAGE MATERIALS SHEN ZHEN LTD CO
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