Single battery and manufacturing method thereof, battery pack, storage battery and equipment

A battery cell and battery case technology, applied in battery pack components, battery cover/end cap, battery box/jacket, etc., can solve the problems of low current density, heat generation, unfavorable battery pack charging and discharging, etc. The effect of battery internal resistance, efficient storage and release, and shortening current conduction distance

Pending Publication Date: 2021-08-24
张红喜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the internal resistance of the electrodeless battery has been greatly reduced, there is still a problem of heat generation, and the current density between the battery cells is relatively low, which is not conducive to the charging and discharging of the battery pack.

Method used

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  • Single battery and manufacturing method thereof, battery pack, storage battery and equipment
  • Single battery and manufacturing method thereof, battery pack, storage battery and equipment
  • Single battery and manufacturing method thereof, battery pack, storage battery and equipment

Examples

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Embodiment Construction

[0046] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0047] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicat...

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Abstract

The invention discloses a single battery, a manufacturing method thereof, a battery pack, a storage battery and equipment, relates to the technical field of new energy, and aims to improve the effective current-carrying capacity among the single batteries under the condition of lower heat productivity. The battery comprises a battery shell, a tab-free battery cell, a first electrode terminal, a second electrode terminal and a battery cap, wherein the tab-free battery cell is positioned in the battery shell; the battery shell is provided with an opposite closed structure and an open structure provided with a battery cap, the tab-free battery cell is provided with a first electrode end face and a second electrode end face which are opposite, the first electrode terminal is welded with the first electrode end face, the second electrode terminal is welded with the second electrode end face, and the battery cap is welded with the second electrode terminal; the closed structure comprises a first protruding part and a first welding part, the first welding part is welded to the first electrode terminal, and the first protruding part protrudes in the direction away from the opening structure. The manufacturing method is used for manufacturing the single battery. The single battery provided by the invention is used in the storage battery.

Description

technical field [0001] The invention relates to the field of new energy technologies, in particular to a battery cell and a manufacturing method thereof, a battery pack, a storage battery and equipment. Background technique [0002] At present, the main focus of the lithium-ion battery industry is mostly focused on improving the energy density of lithium-ion battery products, but there is still a lack of improvement and research on power density (that is, high-power, high-current discharge performance), which has led to lithium-ion batteries. In the actual charging application process, safety accidents such as battery heating, fire, insufficient cruising range, and even explosion and fire are prone to occur. [0003] In order to improve the performance of lithium-ion batteries, some manufacturers have directly connected the current collector to the cover plate or the casing by means of current collector electrodes to form electrodeless batteries, which can increase the curre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/102H01M50/147H01M50/533H01M50/536
CPCH01M50/102H01M50/147H01M50/533H01M50/536Y02E60/10
Inventor 张红喜
Owner 张红喜
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