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Lithium secondary battery

A lithium secondary battery and electrode technology, applied in the field of lithium secondary batteries, can solve the problems of battery cycle life characteristics or insufficient capacity, and battery performance has not been greatly developed, and achieve the effect of improving battery output characteristics

Active Publication Date: 2019-12-27
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, currently some flexible batteries have been developed at the research level, but the cycle life characteristics or capacity of the batteries are insufficient for practical industry
As a result of research on flexible batteries, research on flexible batteries is being carried out in various ways, such as flexible batteries using fabrics, flexible batteries using metal mesh screens or carbon nanotubes (CNTs) as current collectors, etc., but they are limited in battery performance. has not been greatly developed

Method used

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  • Lithium secondary battery
  • Lithium secondary battery
  • Lithium secondary battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] The current collector was fabricated by plating 70 nm thick nickel as the first metal layer on a woven fabric panel (easily obtained from companies supplying fabric panels), depositing 350 nm thick copper on it, and then plating 80 nm thick nickel thereon as the third metal layer.

Embodiment 2

[0106] A current collector was manufactured according to the same method as in Example 1, except that a high-density fabric panel (which is readily available from a company providing fabric panels) was used instead of the woven fabric panel.

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Abstract

The present invention relates to a lithium secondary battery comprising: a current collector comprising a structure in a fabric form in which fiber bundles are cross-woven, wherein each of the fiber bundles is formed of sets of fiber yarns, each of the fiber yarns including a polymer fiber and a metal layer surrounding the polymer fiber; and an active material layer disposed on at least one surface of the current collector.

Description

technical field [0001] The present invention relates to lithium secondary batteries. Background technique [0002] Recently, many flexible electronic products such as flexible displays, flexible RFIDs, flexible organic solar cells, flexible transistors, flexible sensors, etc. have proliferated and become commercially available. Furthermore, in order to operate such electronic devices while taking advantage of flexible properties, batteries with good flexibility are inevitably required. However, some flexible batteries have been developed at the research level so far, but the cycle life characteristics or capacity of the batteries are insufficient for practical industry. As a result of research on flexible batteries, research on flexible batteries is being carried out in various ways, such as flexible batteries using fabrics, flexible batteries using metal mesh screens or carbon nanotubes (CNTs) as current collectors, etc., but they are limited in battery performance. has n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/74H01M4/66H01M4/13H01M10/052
CPCH01M10/052Y02E60/10H01M4/668H01M4/667H01M4/661H01M4/747H01M4/13H01M4/665H01M4/72H01M4/75
Inventor 严惠悧李承栽崔率韩大运
Owner SAMSUNG SDI CO LTD