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Button cell and preparation method thereof

A button battery and cell technology, which is applied in the manufacture of electrolyte batteries, dry batteries, secondary batteries, etc., can solve the problems of inconvenient assembly, easy touching of steel sheets, and complicated manufacturing processes, and achieves convenient processing and assembly. Convenience and smooth attachment

Pending Publication Date: 2020-07-31
HUIZHOU HENGTAI TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing button batteries generally have stacked cells, which makes the manufacturing process more complicated and reduces the production efficiency of the button battery; moreover, the steel shell of the existing battery is easy to touch the steel sheet, which is prone to short circuit In addition, the tabs of the existing button batteries are made of pure nickel nickel sheet, which is relatively soft, not suitable for mechanized operation, inconvenient to assemble, and can not realize the arbitrary assembly of tab angles

Method used

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  • Button cell and preparation method thereof
  • Button cell and preparation method thereof
  • Button cell and preparation method thereof

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Embodiment Construction

[0035] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0036] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of ill...

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Abstract

The invention discloses a button cell and a preparation method thereof, the button cell comprises a steel shell, a cell assembly and a steel sheet assembly, and the steel shell is provided with an insulation avoidance gap; the battery cell assembly comprises a soft package battery cell, a first tab and a second tab, the first tab and the second tab are respectively arranged on the soft package battery cell, and the first tab is welded on the steel shell; the steel sheet assembly comprises a first steel sheet and a second steel sheet, the first steel sheet is welded on the steel shell, the second tab is welded on the second steel sheet, the second steel sheet is aligned with the insulating avoidance gap, and one end of the first steel sheet and one end of the second steel sheet are used forbeing jointly inserted into an external electronic device. According to the button battery disclosed by the invention, by arranging the soft package battery cell, compared with a laminated battery, the button cell is simpler in process and more convenient to process and assemble; by forming the insulating avoidance notch in the steel shell, the tabs or the steel sheets can be prevented from making contact with the steel shell in the assembling process, and therefore the problem of short circuit can be avoided.

Description

technical field [0001] The invention relates to the field of button batteries, in particular to a button battery and a preparation method thereof. Background technique [0002] Button batteries are very common batteries with small size and many models. Because of its shape and size like a small button battery, it is also called a button battery. Most button batteries are primary batteries (non-rechargeable batteries, also known as primary batteries). Dry batteries are significantly different in appearance. Generally speaking, there are two types of button batteries, rechargeable and non-rechargeable. The rechargeable ones include 3.6V rechargeable lithium-ion button batteries (LIR series), 3V rechargeable lithium-ion button batteries (ML or VL series); Charging includes 3V lithium-manganese button cells (CR series) and 1.5V alkaline zinc-manganese button cells (LR and SR series). [0003] However, the existing button batteries generally have stacked cells, which makes th...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M2/20H01M2/22H01M2/34H01M6/06H01M6/14H01M10/0525H01M10/058H01M50/109H01M50/528H01M50/533H01M50/536H01M50/593
CPCH01M10/0525H01M10/058H01M6/14H01M6/06H01M50/216H01M50/50H01M50/528H01M50/598Y02E60/10Y02P70/50
Inventor 刘志伟沈立强覃昌松戴建勇曾贤华
Owner HUIZHOU HENGTAI TECH
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