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Preparation method of film lithium ion battery

A lithium-ion battery and thin-film technology, which is used in the manufacture of primary battery equipment, electrolyte battery manufacturing, and secondary batteries, etc., can solve the problem that metal materials are easily corroded, the quality of thin-film lithium-ion batteries is high, and the service life of thin-film lithium-ion batteries is affected. and other problems, to achieve the effect of high energy density, not easy to damage, and long service life

Active Publication Date: 2014-01-29
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these metal flakes generally have a large weight, so that the quality of the thin-film lithium-ion battery is large; at the same time, because the metal material is easily corroded, it further affects the service life of the thin-film lithium-ion battery

Method used

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  • Preparation method of film lithium ion battery
  • Preparation method of film lithium ion battery
  • Preparation method of film lithium ion battery

Examples

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Embodiment Construction

[0016] The thin-film lithium-ion battery provided by the present invention and its preparation method will be further described in detail below with reference to the accompanying drawings and specific examples.

[0017] see figure 1 , The first embodiment of the present invention provides a thin film lithium ion battery 100, the thin film lithium ion battery 100 includes a positive electrode sheet 102, a negative electrode sheet 104, a solid electrolyte film 106 and an external packaging structure (not shown). The external packaging structure encapsulates the positive electrode sheet 102, the negative electrode sheet 104 and the solid electrolyte film 106 therebetween. The positive electrode sheet 102 and the negative electrode sheet 104 are stacked and separated from each other by a solid electrolyte film 106 . The positive electrode sheet 102 and the negative electrode sheet 104 are respectively located on both sides of the solid electrolyte film 106 and bonded to the solid...

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Abstract

The invention provides a preparation method of a film lithium ion battery, which comprises the following steps: providing a positive pole material layer; arranging a positive pole current collector on the surface of the positive pole material layer to form a positive pole piece, wherein the positive pole current collector comprises a graphene layer; providing a negative pole material layer; arranging a negative pole current collector on the surface of the negative pole material layer to form a negative pole piece; and arranging a solid electrolyte film between the positive pole piece and the negative pole piece, and packaging the positive pole piece, solid electrolyte film and negative pole piece in an external packaging structure.

Description

technical field [0001] The invention relates to a preparation method of a thin film lithium ion battery. Background technique [0002] Existing thin-film lithium-ion batteries include an outer casing, a positive electrode sheet packaged in the outer casing, a negative electrode sheet, and a solid electrolyte disposed between the positive electrode sheet and the negative electrode sheet. The positive sheet includes a positive current collector and a positive material layer formed on the surface of the positive current collector. The negative electrode sheet includes a negative electrode current collector and a negative electrode material layer formed on the surface of the negative electrode current collector. Thin-film lithium-ion batteries are widely used in various fields due to their thinness and lightness. [0003] A current collector in a battery is a structure used to collect electric current. The function of the current collector is mainly to gather the current gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/058H01M4/66
CPCY02E60/12Y02E60/122H01M4/625H01M6/005H01M10/0585H01M10/0525H01M4/663H01M4/139Y10T29/4911Y02E60/10Y02P70/50
Inventor 王佳平范守善
Owner TSINGHUA UNIV
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