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A secondary battery, lithium ion technology, used in secondary batteries, secondary battery repair/maintenance, battery pack components, etc., can solve the problems of small size, complex processing technology, low reliability, etc. The requirements for precise positioning, the simplification of operation process requirements, and the effect of improving process operability
Active Publication Date: 2022-03-18
NAT ENG RES CENT OF ADVANCED ENERGY STORAGE MATERIALS SHEN ZHEN LTD CO
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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
For example, multiple plastic parts or multiple circuit boards are often arranged in the structure, which leads to the need for positioning and assembling of multiple parts, and the process is very complicated.
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
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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 size 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 (that is, the maximum diameter of the battery DA=10.50mm), battery height ≤44.5mm (that is, the maximum battery height DH=44.50mm), the battery has its own MicroUSB interface charging function; it has charging management functions; it has charging protection and discharge protection functions (discharge undervoltage protection, charging O...
Embodiment 2
[0081] 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, including a lithium-ion battery cell, a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, a third capacitor, a label, a steel shell, and a MicroUSB interface , protection IC, integrated IC, inductor, LED lamp, plastic parts, rigid FR‑4 substrate and metal cap, the MicroUSB interface is set on the positive side of the battery to realize MicroUSB interface rechargeable, constant voltage output, charging management and protection, over Charge, over-discharge and over-current protection all-in-one function. Compared with the prior art, the lithium ion secondary battery of the present invention has simple process, easy installation, high integration efficiency, high reliability, high capacity and low cost.
Description
technical field [0001] The present invention relates to a lithium-ion secondary battery, in particular to a battery that integrates multiple functions such as constant voltage output, charging management, charging protection, and battery protection (including overcharge protection, overdischarge protection, and overcurrent protection). The upper end is equipped with a MicroUSB interface and a charging input function, and also has 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 se...
Claims
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