Oxygen-deficient tungsten oxide/polypyrrole core-shell nanowire array electrochromic film and preparation method thereof

A tungsten oxide nanowire, pyrrole core-shell nanotechnology, applied in chemical instruments and methods, color-changing fluorescent materials, coatings, etc., can solve problems such as limiting practical applications, achieve large-scale industrial production, and enhance long-term cycle stability. the effect of increased velocities and rates of ion diffusion
CN110590176AActive Publication Date: 2019-12-20合肥庐阳科技创新集团有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
合肥庐阳科技创新集团有限公司
Publication Date
2019-12-20

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Abstract

The invention provides an oxygen-deficient tungsten oxide / polypyrrole core-shell nanowire array electrochromic film and application, an all-solid-state lithium metal battery and a preparation method of the electrochromic film, and belongs to the field of battery materials. A lithium-conducting channel of the oxygen-deficient tungsten oxide / polypyrrole core-shell nanowire array electrochromic filmprovided in the invention shifts from a single LAGP ceramic lithium-conducting channel to a two-way lithium-conducting channel by polymer and LAGP simultaneously, thereby improving the diffusion rateof lithium ions, reducing side reactions between an electrolyte and a lithium metal, stabilizing an interface reaction between the lithium metal and the electrolyte, preventing a dendritic crystal from growing and being connected with positive and negative electrodes to cause a short circuit, preventing a lithium dendrite crystal from piercing a separator and further causing a short circuit, improving the capacity retention efficiency of a battery, and prolonging the cycle life of the battery; the battery can maintain stable performance at different temperatures; and at the same time, the thickness of the oxygen-deficient tungsten oxide / polypyrrole core-shell nanowire array electrochromic film can be adjusted as needed.
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Description

technical field

[0001] The invention relates to the technical field of electrochromic films, in particular to an oxygen-deficient tungsten oxide / polypyrrole core-shell nanowire array electrochromic film and an oxygen-deficient tungsten oxide / polypyrrole core-shell nanowire array electrochromic film and its Preparation. Background technique

[0002] Electrochromism means that when a small voltage is applied, a material will undergo a reversible and stable color change, mainly a reversible and permanent change in light transmittance and (or) reflectivity. The applications of electrochromic devices mainly include: smart windows, automotive anti-glare mirrors, microelectronics, energy-saving billboards, stealth fighters and other military products, etc. Electrochromic devices have become a hot material in the field of scientific research in recent years due to their low energy consumption, improvement of living comfort, and great application prospects in the fields of stealth m...

Claims

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