Electrode piece structure of battery, battery roll core, and method of manufacturing such battery roll core

A battery roll and pole piece technology, applied in non-aqueous electrolyte battery electrodes, secondary batteries, structural parts, etc., can solve problems such as insufficient, inability to effectively discharge battery life, and achieve the effect of reducing battery internal resistance

Pending Publication Date: 2018-12-07
深圳市创景新能源科技有限公司
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Problems solved by technology

[0003] The rate and safety issues of the existing cylindrical steel-cased lithium-ion batteries have always been worse than those of polymer batteries and aluminum-cased power batteries. For example, the rate discharge of cylindrical batteries mostly reaches 30C after continuous discharge. If the discharge rate is increased, it cannot be effectively discharged. or low battery life

Method used

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  • Electrode piece structure of battery, battery roll core, and method of manufacturing such battery roll core
  • Electrode piece structure of battery, battery roll core, and method of manufacturing such battery roll core
  • Electrode piece structure of battery, battery roll core, and method of manufacturing such battery roll core

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Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0046] figure 1 It is a schematic structural diagram of a pole piece structure 11 of a battery provided by an embodiment of the present invention. refer to figure 1 , the pole piece structure 11 of the battery of the embodiment of the present invention includes a pole piece 12 and a pole piece 13, the pole piece 13 is arranged on one side of the pole piece 12, the pole piece 13 and the pole piece 12 are integrally structured, and the pole piece 13 is composed of an opposite p...

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Abstract

In embodiments, the invention discloses an electrode piece structure of a battery, a battery roll core, and a method of manufacturing such battery roll core in order to reduce internal resistance of the battery. According to one embodiment, the electrode piece structure includes an electrode piece and an electrode lug, wherein the electrode lug is located on one side of the electrode piece, the electrode piece and the electrode lug are integrated, and the electrode lug is formed by cutting the electrode piece. Therefore, since the electrode piece and the electrode lug are integrated and the electrode lug is formed by cutting the electrode piece, the height of the roll core, including the electrode piece, is not influenced even the electrode lug is added, thus reducing the internal resistance of the battery.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a pole piece structure of a battery, a battery winding core and a manufacturing method of the battery winding core. Background technique [0002] In order to facilitate the user to use the electronic device and improve the portability of the electronic device, the cooperation of the battery is required. Among them, in the lithium battery market, cylindrical batteries are the most industrialized and automated products. [0003] The rate and safety issues of the existing cylindrical steel-cased lithium-ion batteries have always been worse than those of polymer batteries and aluminum-cased power batteries. For example, the rate discharge of cylindrical batteries mostly reaches 30C after continuous discharge. If the discharge rate is increased, it cannot be effectively discharged. Or there is insufficient battery life. And the internal resistance of cylindrical batteries is also higher tha...

Claims

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Application Information

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IPC IPC(8): H01M2/26H01M4/13H01M2/22H01M10/0525H01M10/0587H01M50/528
CPCH01M4/13H01M10/0525H01M10/0587H01M50/528H01M50/531Y02E60/10Y02P70/50
Inventor 张中春
Owner 深圳市创景新能源科技有限公司
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