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Lithium ion battery

A lithium-ion battery and positive electrode technology, applied in battery electrodes, secondary batteries, circuits, etc., can solve the problems of slow charging speed and insufficient storage capacity of lithium batteries, and achieve the improvement of total storage capacity, reduction of electrolyte volume, and improvement The effect of conductivity

Active Publication Date: 2018-07-31
河南烯碳合成材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to solve the problem that the storage capacity of lithium batteries is insufficient and the charging speed is slow

Method used

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Embodiment Construction

[0017] Relating to the detailed description and technical content of the present invention, it is now described as follows in conjunction with the accompanying drawings:

[0018] Please refer to figure 1 , figure 2 As shown, it is a schematic structural diagram of a lithium-ion battery according to the first embodiment of the present invention. The present invention is a lithium-ion battery including a positive electrode 10, a negative electrode 20 and a separator 30. The positive electrode 10 includes a first Current collector 11, a positive electrode active material layer 12 and a first carbon material layer 13, the material of the first current collector 11 can be aluminum, copper, iron, nickel, platinum, tungsten, molybdenum, tantalum, niobium, Vanadium, chromium, titanium, zirconium or combinations thereof. The positive electrode active material layer 12 is disposed on one side of the first current collector 11. In one embodiment, the positive electrode active material...

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Abstract

A lithium ion battery includes a positive electrode, a negative electrode and a separator. The positive electrode includes a first current collector, a positive electrode active material layer, and afirst carbon material layer between the first current collector and the positive electrode active material layer; the negative electrode includes a second current collector, a negative electrode active material layer, and a second carbon material layer disposed between the second current collector and the negative electrode active material layer, the separator is interposed between the positive electrode and the negative electrode, wherein the first carbon material layer and the second carbon material layer are respectively a graphene layer, the graphene layer has a diameter with La value of 1mu m to 50 m um detected by Raman spectroscopy, and the number of layers of the graphene layer is between 1 and 10.

Description

technical field [0001] The invention relates to a lithium-ion battery, in particular to a lithium-ion battery with fast charging and improved power storage. Background technique [0002] With the advancement of science and technology and the improvement of environmental protection awareness, secondary batteries are widely used in various fields, such as electric vehicles, mobile electronic devices or aerospace devices. As far as the current situation is concerned, the storage capacity of secondary batteries does not meet the needs of the market , so many battery manufacturers try their best to develop secondary batteries with high storage capacity to solve the existing problems. [0003] For example, China Taiwan Invention Patent Publication No. I474543 proposes a lithium battery, including a separator, a positive electrode structure and a negative electrode structure, the separator has a first surface and a second surface opposite to the first surface, the The positive ele...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/66H01M4/36H01M4/62H01M10/0525H01M16/00
CPCH01M4/366H01M4/625H01M4/663H01M4/667H01M10/0525H01M16/00Y02E60/10
Inventor 宋健民刘建设王适王海超汪曙光臧波林逸樵林弘正
Owner 河南烯碳合成材料有限公司
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