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Polymer-based solid electrolytes and preparation methods thereof

A solid electrolyte, rechargeable battery technology, used in solid electrolyte, electrolyte battery manufacturing, non-aqueous electrolyte and other directions

Active Publication Date: 2012-08-22
TAIWAN TEXTILE RESEARCH INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these properties may conflict with each other; for example, in the pursuit of high energy density, the mechanical strength of solid electrolytes must often be sacrificed

Method used

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  • Polymer-based solid electrolytes and preparation methods thereof
  • Polymer-based solid electrolytes and preparation methods thereof

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Embodiment Construction

[0015] In order to make the description of the present disclosure more detailed and complete, the following provides illustrative descriptions for the implementation modes and specific examples of the present invention; but this is not the only form for implementing or using the specific embodiments of the present invention. The description covers features of various embodiments as well as method steps and their sequences for constructing and operating those embodiments. However, other embodiments can also be used to achieve the same or equivalent functions and step sequences.

[0016] One aspect of the present invention relates to a method for preparing a solid electrolyte. According to the principle and spirit of the present invention, adopt low-temperature chemical method (about 40-120 ℃), prepare film-forming solution by selecting appropriate solvent, thus can shorten film-forming time (not more than 48 hours); Meanwhile, by Selecting an appropriate solvent and controllin...

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Abstract

Polymer-based solid electrolytes and preparation methods thereof are provided. The polymer-based solid electrolyte comprises a polymer, an electrolyte, and a solvent. The polymer of the solid electrolyte can be polyvinyl alcohol (PVA) or sulfonated polyetheretherketone (SPEEK). The electrolyte is a lithium salt.

Description

technical field [0001] The present invention relates to an electrolyte and a preparation method thereof, in particular to a solid electrolyte and a preparation method thereof. Background technique [0002] Lithium-ion secondary batteries (hereinafter referred to as lithium batteries) have the advantages of high working voltage, high energy density, light weight, and long life, and have been widely used in consumer electronics and some high-power products. In general, liquid or solid electrolytes can be used in lithium batteries. [0003] Although the liquid electrolyte has high ion conductivity, the liquid components are easy to leak, which leads to the problem of battery leakage. Furthermore, in order to effectively encapsulate the liquid electrolyte, more complex packaging structures may have to be used, making it difficult to effectively downsize such lithium batteries. [0004] In contrast, a thin-film lithium battery using a solid electrolyte (also known as a solid th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0565H01M10/058C08J5/18
CPCH01M10/0565H01M2300/0082C09D129/04C08G65/48C08L71/00C08G2650/40Y02E60/10Y02P70/50C08K3/24
Inventor 何文贤蔡淳博陈柏州江启圣邱国峰
Owner TAIWAN TEXTILE RESEARCH INSTITUTE