Patent
Method for improving solid-state battery interface stability by polymer electrolyte
TLDR
In this paper, a hierarchical porous polymer electrolyte film is used as a buffer layer material and is placed between an electrode material and a solid-state electrolyte to form favorable contact with a positive electrode material, an electrolyte material and metallithium.Abstract:
A method for improving solid-state battery interface stability by a polymer electrolyte belongs to the technical field of solid batteries. A prepared hierarchical porous polymer electrolyte film is used as a buffer layer material and is placed between an electrode material and a solid-state electrolyte to form favorable contact with a positive electrode material, an electrolyte material and metallithium, the interface impedance is effectively reduced, direct contact reaction between the solid-state electrolyte and the metal lithium can be reduced, and the all-solid-state battery has relatively good cycle stability.read more
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Patent
Solid electrolyte film and application thereof
Lu Xia,Han Baichuan +1 more
TL;DR: In this article, the authors proposed a solid electrolyte film that combines the high ionic conductivity of the garnet type solid electrolytes and the flexibility of the flexible polymer, and realized good contact between positive and negative electrodes and the solid electrolytte, and effectively solved the problem of solid-solid interface contact, so that the high conductivity and excellent electrochemical performance of constructed solid-state secondary battery are realized.
References
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Patent
Separator having binder layer, and electrochemical device comprising the separator and method of preparing the separator
TL;DR: In this article, the authors provided a separator comprising a porous substrate, a porous coating layer and a binder layer, the binder comprising at least one homopolylmer of polyvinylidene fluoride (PVDF)-co-hexafluoropropylene (HFP) so that a content difference of HFP present in the two compounds is about 3 wt % or higher.
Patent
Inorganic solid-state electrolyte material and preparation method therefor
TL;DR: In this paper, a molar ratio of Li :Al :M :P being equal to (1+x):x:x:(2-x):3 is used to obtain an all-solid-state lithium ion battery.
Patent
All-solid secondary battery
TL;DR: An all-solid secondary battery is composed of a neg electrode, high-polymer solid electrolyte, and pos electrode as mentioned in this paper, where the pos electrode assumes a sheet form in which pos electrode active substance particulates and electron conductor are dispersed in the highpolymer liquid electrolyte.
Patent
Composite electrolyte of sandwich structure and preparation method thereof
TL;DR: In this paper, a composite electrolyte consisting of a porous thin film and a composite solid electrolyte material is presented. But the preparation method of the composite electrolytes is not described. But it can be widely applied to the field of preparation of electrolyte.
Patent
Solid electrolyte and all-solid-state battery
TL;DR: In this article, the nominal molar ratio of various elements in a garnet-type solid electrolyte chemical formula LiALaBMCNDZrEO12 was calculated to obtain a high density, good ionic conductivity and good stability to lithium metal.