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Application of polyacid/high-molecular polymer hybrid nanowire material as solid electrolyte

A technology of high molecular polymer and solid electrolyte, applied in the application field of hybrid nanowire materials, can solve problems such as low ionic conductivity, and achieve the effects of simple process, superior performance and convenient operation

Active Publication Date: 2019-04-19
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under this structure Li + need to cross a huge interfacial barrier and ultimately lead to low ionic conductivity
There are few studies on improving the electrochemical performance of PSSs by controlling their morphology.

Method used

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  • Application of polyacid/high-molecular polymer hybrid nanowire material as solid electrolyte
  • Application of polyacid/high-molecular polymer hybrid nanowire material as solid electrolyte
  • Application of polyacid/high-molecular polymer hybrid nanowire material as solid electrolyte

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] At room temperature, add 60mL deionized water, 0.01mol sodium p-styrenesulfonate, 0.05mmol-0.5mmol CH 78 Li 7 o 78 V 15 (Li 7 V 15 ) and 1.6mmol initiator (NH 4 ) 2 S 2 o 8 , the mixed solution was stirred at room temperature for 30 min, then transferred to an oil bath, heated to 80 ° C and kept for 20 h, after it was naturally cooled to room temperature, it was suction filtered and washed and dried overnight at 150 ° C under vacuum to obtain a solid Product V 15 / PSS-Li-n(n=1-4), calculated by EDS experiment test when V 15 When the mass ratio of V and C in / PSS-Li is 84.1%, 80.5%, 77.2% and 74.9%, it is recorded as n=1, 2, 3 and 4, respectively.

[0028] The obtained V was analyzed by X-Ray powder diffraction (PXRD) 15 / PSS-Li-n (n=1-4) hybrid material structure; analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM) obtained V 15 / PSS-Li-n (n=1-4) material size, mo...

Embodiment 2

[0031] The preparation process and steps in this example are basically the same as in Example 1 above, except that the polyacid used in this example is CH 85 Na 6 o 71 V 15 (HNa 6 V 15 ), the initiator is Na 2 S 2 o 8 , the solid product obtained is V 15 / PSS-Na-n (n=1-4).

Embodiment 3

[0033]The preparation process and steps in this example are basically the same as in Example 1 above, except that the polyacid used in this example is CH 16 K 7 o 55 V 15 (K 7 V 15 ), the initiator is K 2 S 2 o 8 , the solid product obtained is V 15 / PSS-K-n (n=1-4).

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Abstract

The invention discloses an application of a polyacid / high-molecular polymer hybrid nanowire material as a solid electrolyte. According to the polyacid / high-molecular polymer hybrid nanowire material,deionized water is used as a solvent, high-molecular polymer monomers, polyoxometallate and an initiator are mixed to be uniform and then heated to react, and a product is filtered, washed and dried to obtain the polyacid / high-molecular polymer hybrid nanowire material. The polyacid / high-molecular polymer hybrid nanowire material synthesized by adopting a simple one-pot reaction method and a polyacid-induced self-assembly method is excellent in performance, is assembled on a solid-state battery as a solid-state electrolyte, and is simple in process and convenient to operate, and the obtained battery is excellent in performance.

Description

technical field [0001] The invention relates to the application of a multi-acid / macromolecular polymer hybrid nanowire material as a solid electrolyte, and belongs to the application technical field of the hybrid nanowire material. Background technique [0002] Batteries play an important role in converting and storing energy. Among the currently available battery technologies, lithium-ion batteries (LIBs) are considered to be the most promising due to their high energy density, high output power, and long cycle life. However, because traditional LIBs usually use liquid organic electrolytes, liquid electrolytes are flammable, easy to leak, and have strong thermal reactivity with carbon anode materials, which causes short circuits inside the battery, and occurs when the temperature is high. explosion, resulting in disadvantages such as uncontrollable safety issues and high costs. For the new generation of LIBs, the typical materials used for the solid-state electrolytes of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/056H01M10/0525H01M10/058
CPCH01M10/0525H01M10/056H01M10/058H01M2300/0065Y02E60/10Y02P70/50
Inventor 兰亚乾张阿曼李顺利张蜜陈宜法
Owner NANJING NORMAL UNIVERSITY
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