Aluminum case cylindrical lithium ion battery structure

A lithium-ion battery, cylindrical technology, applied in the direction of secondary batteries, structural parts, battery pack components, etc., can solve the problems of inconvenient production and use of lithium-ion batteries, and achieve the effect of increasing safety performance

Active Publication Date: 2015-02-11
SUZHOU GCL ENERGY TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a cylindrical lithium-ion battery structure with an aluminum shell, which is used to solve the problem of inconvenient production and use of lithium-ion batteries in the prior art

Method used

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  • Aluminum case cylindrical lithium ion battery structure
  • Aluminum case cylindrical lithium ion battery structure
  • Aluminum case cylindrical lithium ion battery structure

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Embodiment Construction

[0035] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0036] see Figure 1 to Figure 4 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the sa...

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Abstract

The invention relates to an aluminum case cylindrical lithium ion battery structure. The battery structure comprises a lithium ion battery core (1), a cylindrical aluminum case (2) with opened upper and lower ends, a positive electrode tab (10) arranged at the upper end of the lithium ion battery core (1), a negative electrode tab (11) arranged at the bottom of the lithium ion battery core (1) and a positive electrode cap (15) and a negative electrode cap (16) which are used for sealing the cylindrical aluminum case (2). The battery structure is characterized in that the structure further comprises an upper insulating ring (13) and a lower insulating ring (14) arranged in the cylindrical aluminum case (2) and respectively located on two ends of the battery core (1) and the cylindrical aluminum case (2) successively houses the lower insulating ring (14), the battery core provided with the positive electrode tab (10) and the negative electrode tab (11) and the upper insulating ring (13). According to the invention, the positive electrode cap of a battery has anti-explosion and anti-overcharge functions, so safety performance of the battery is improved; the positive electrode cap contains a metal top cap, which facilitates connection with a nickel sheet. The aluminum case cylindrical lithium ion battery structure provided by the invention is simple, is convenient to manufacture and use and has high safety.

Description

technical field [0001] The invention relates to the field of lithium ion batteries, relates to a lithium ion battery structure, in particular to an aluminum shell cylindrical lithium ion battery structure. Background technique [0002] Lithium-ion battery is a kind of charge-discharge rechargeable secondary battery, which mainly relies on the migration of lithium ions between the positive electrode and the negative electrode to work. During the charging and discharging process, Li+ intercalates and deintercalates back and forth between the two electrodes: when charging, Li+ is deintercalated from the positive electrode, intercalated into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge. Generally, batteries containing lithium elements are used as electrodes. It is a representative of modern high-performance batteries. [0003] The existing cylindrical lithium-ion battery has a protr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/0525H01M2/04H01M2/34H01M10/058
CPCY02E60/122Y02E60/10Y02P70/50
Inventor 林永寿郑宗田李明宋华冰
Owner SUZHOU GCL ENERGY TECH DEV CO LTD
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