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A kind of solid-state battery plastic packaging material and its application

A technology of plastic packaging and solid-state batteries, which is applied in the direction of secondary batteries, circuits, electrical components, etc., can solve the problems of poor flexibility and low energy density of lithium-ion batteries, and achieve improved energy density, good foldable performance, and simple curing process Effect

Active Publication Date: 2020-05-19
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides an all-solid-state battery plastic packaging material and its application, which fully combines the characteristics and requirements of the existing lithium-ion battery packaging materials, and is targeted at the solid-state lithium-ion battery. The packaging material was redesigned, and a new plastic packaging material for solid-state batteries was proposed accordingly. It was applied to the preparation of all-solid-state lithium-ion batteries, and the energy density of the obtained lithium-ion batteries was greatly improved, and the battery was more flexible. Solve the technical problems of low energy density and poor flexibility of lithium-ion batteries obtained by using metal packaging materials in existing lithium-ion batteries

Method used

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  • A kind of solid-state battery plastic packaging material and its application
  • A kind of solid-state battery plastic packaging material and its application
  • A kind of solid-state battery plastic packaging material and its application

Examples

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Embodiment 1

[0037] This embodiment provides a solid-state battery plastic packaging material, which includes 60 parts by weight of UV-curable prepolymer PUA, 30 parts by weight of reactive diluent monomer TPGDA and 10 parts by weight of photoinitiator TPO.

[0038]Apply the above packaging materials to the preparation of all-solid plastic batteries, the process flow chart is as follows figure 1 As shown, a figure 2 The preparation method of the shown high energy density, all-solid plastic battery comprises the following steps:

[0039] (1) PUA is a UV-curable prepolymer, TPGDA is a reactive diluent monomer, and TPO is a photoinitiator, mixed according to the percentage mass ratio of 60:30:10 to obtain a photocurable precursor;

[0040] (2) Mix and stir lithium bistrifluoromethanesulfonylimide, polyethylene oxide with a molecular weight of 400W, and acetonitrile, and prepare an all-solid electrolyte membrane by a one-step pouring method;

[0041] (3) The ratio of lithium cobaltate, carb...

Embodiment 2

[0046] This embodiment provides a solid-state battery plastic packaging material, including 70 parts by weight of UV-curable prepolymer EA, 20 parts by weight of reactive diluent monomer HDDA and 10 parts by weight of photoinitiator 184 .

[0047] Apply the above packaging materials to the preparation of all-solid plastic batteries, the process flow chart is as follows figure 1 Shown, a kind of preparation method of high energy density, all-solid plastic battery comprises the following steps:

[0048] (1) EA is a UV-curable prepolymer, HDDA is a reactive diluent monomer, and 184 is a photoinitiator, mixed according to the percentage mass ratio of 70:20:10 to obtain a photocurable precursor;

[0049] (2) Mix and stir lithium bistrifluoromethanesulfonylimide, polyethylene oxide with a molecular weight of 400W, and acetonitrile, and prepare an all-solid electrolyte membrane by a one-step pouring method;

[0050] (3) The ratio of lithium cobaltate, carbon black, and PVDF is mixed...

Embodiment 3

[0055] This embodiment provides a solid-state battery plastic packaging material, which includes 60 parts by weight of UV-curable prepolymer PUA, 30 parts by weight of reactive diluent monomer TPGDA and 10 parts by weight of photoinitiator TPO.

[0056] Apply the above packaging materials to the preparation of all-solid plastic batteries, the process flow chart is as follows figure 1 Shown, a kind of preparation method of high energy density, all-solid plastic battery comprises the following steps:

[0057] (1) PUA is a UV-curable prepolymer, TPGDA is a reactive diluent monomer, and TPO is a photoinitiator, mixed according to the percentage mass ratio of 60:30:10 to obtain a photocurable precursor;

[0058] (2) Mix and stir lithium bistrifluoromethanesulfonylimide, polyethylene oxide with a molecular weight of 400W, and acetonitrile, and prepare an all-solid electrolyte membrane by a one-step pouring method;

[0059] (3) The ratio of lithium cobaltate, carbon black, and PVDF ...

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Abstract

The invention belongs to the field of new energy sources, electrochemistry and high molecular materials and more specifically relates to a solid-state battery plastic packaging material and application thereof. The solid-state battery plastic packaging material is prepared from the following components in parts by weight: 60 to 70 parts of ultraviolet curing pre-polymer, 20 to 35 parts of active diluting agent monomer and 5 to 15 parts of photoinitiator. The solid-state battery plastic packaging material is applied to preparation of full-solid-state plastic lithium-ion batteries; in a preparation process, an ultraviolet curing plastic packaging technology is used for replacing a traditional steel sell and aluminum-plastic membrane packaging technology, so that resource utilization of metalis effectively reduced and the energy density of the lithium-ion batteries is extremely improved; on the other hand, a solid-state electrolyte membrane is used so that a prepared plastic battery hasgood flexibility and foldable performance and good safety performance; finally, a collector electrode aluminum foil and a copper foil are directly used for testing the battery so that the utilizationof a nickel electrode and an aluminum electrode is reduced, and furthermore, the energy density of the lithium-ion batteries is improved.

Description

technical field [0001] The invention belongs to the fields of new energy, electrochemistry and polymer materials, and more specifically relates to a solid-state battery plastic packaging material and its application. Background technique [0002] Energy is an important material basis for human survival and social development, and an important cornerstone for national economy, national security and sustainable development. With the rapid consumption of traditional biochemical energy such as oil, coal, natural gas, etc., and their combustion will also produce greenhouse gases and other toxic and harmful substances (SO 2 , NO 2 etc.), which have many adverse effects on the sustainable development of the environment and economy. Therefore, finding renewable new green energy is the most urgent task for researchers at present. [0003] Lithium-ion batteries, as a new energy source in the 1990s, have been widely concerned by people, and are widely used in electric vehicles, 3C d...

Claims

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Application Information

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IPC IPC(8): C09J175/14C09J163/10C09J11/06H01M10/0525
CPCC09J11/06C09J163/10C09J175/14H01M10/0525Y02E60/10
Inventor 朱明强尹红李冲余翔翔
Owner HUAZHONG UNIV OF SCI & TECH