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A precursor material for lithium ion batteries and a method for manufacturing lithium ion batteries

A lithium-ion battery and precursor technology, which can be used in the manufacture of electrolyte storage batteries, secondary batteries, battery pack components, etc., can solve the problem of high production cost of inorganic solid electrolytes

Active Publication Date: 2019-07-09
NANO & ADVANCED MATERIALS INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the production cost of inorganic solid electrolytes is very high

Method used

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  • A precursor material for lithium ion batteries and a method for manufacturing lithium ion batteries
  • A precursor material for lithium ion batteries and a method for manufacturing lithium ion batteries
  • A precursor material for lithium ion batteries and a method for manufacturing lithium ion batteries

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Embodiment

[0027] In order to prepare the precursor material of the solid electrolyte layer, in a mixture of ethylene carbonate (ethylenecarbonate), dimethyl carbonate (dimethyl carbonate), diethyl carbonate (diethyl carbonate) and acetonitrile as an organic solvent, a Lithium hexafluorophosphate (LiPF 6 ) and a 1 M mixture solution of lithium bis(trifluoromethanesulfonimide) (LiTFSI). A mixture of ionically conductive polymers including polyethylene oxide and polyvinylidene fluoride is then dissolved in the solution. Next, 10 wt% of ethoxylated trimethylolpropane as a crosslinkable monomer and 2-hydroxyl-2-methylpropiophenone as a photoinitiator were used at a monomer / photoinitiator weight ratio of 90 10, and 2wt% Al 2 o 3 The nano-ceramic filler is added into the viscous solution, and the defoaming mixer is continuously used for 3 minutes to obtain evenly dispersed ceramic particles. Coat the gel-like precursor onto the electrode. The solid electrolyte was formed by shining UV lig...

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Abstract

A precursor material for lithium ion batteries and a method for manufacturing lithium ion batteries are provided. The precursor material is UV-curable and printable and can be used as a separator anda solid electrolyte. The precursor material includes a lithium salt dissolved in one or more organic solvents; UV-curable monomer in an amount from approximately 4 weight percent to approximately 10 weight percent, a UV-initiator; one or more host ion conductive polymers in an amount less than approximately 5 weight percent of the precursor material; and a ceramic powder. The precursor material, when cured, has sufficient mechanical rigidity to act as a separator preventing electrical shorting between a lithium ion battery cathode and a lithium ion battery anode, and also has sufficient electrical conductivity to function as an electrolyte for a lithium ion battery. The provided method enables the formation of batteries with complex shapes through printing.

Description

technical field [0001] The present invention relates to a printable precursor material used as a solid electrolyte, and more particularly, to a printable precursor material used as a solid electrolyte for a lithium-ion battery that does not require separator paper. Background technique [0002] There is an increasing demand for high-performance lithium-ion batteries. The development of new flexible and wearable electronics has spurred research into ever smaller batteries. A focus of the industry is the development of flexible batteries with high safety, especially at high temperatures. In particular, it should be pointed out that the safety of traditional liquid electrolytes has been widely concerned. At high temperatures, electrolyte leakage may cause fire or explosion. Therefore, studies have been conducted on solid electrolytes as a substitute for liquid electrolytes. In the past, polymer electrolytes were mainly solid polymer membranes. These polymer membranes requir...

Claims

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Application Information

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IPC IPC(8): H01M10/0525H01M10/0565H01M10/058
CPCH01M10/058H01M10/0525H01M10/0565H01M2300/0085H01M2300/0071H01M10/056H01M10/0562H01M10/0568Y02E60/10H01M50/446Y02P70/50
Inventor 莎拉·阿布阿里郑富林傅丽
Owner NANO & ADVANCED MATERIALS INST
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