Registration Number
0219U102412,
0119U101109
, R & D reports
Title
Composite solid electrolytes based on inorganic nanoparticles with NASICON structure and polymer
popup.stage_title
Head
V'yunov Oleg I., Кандидат хімічних наук
Registration Date
28-12-2019
Organization
V.I. Vernadskii Institute of General & Inorganic Chemistry NAS of Ukraine
popup.description2
The purpose of the work is to create composite solid electrolytes based on inorganic nanoparticles and polymer, which will be characterized by lithium conductivity, which is important for practical use in the development of solid-state electrochemical systems.
Synthesis methods (solid-state reactions, sol-gel) of Li-conductive material Li1.3Al0.3Ti1.7(PO4)3 (LATP) were developed, and the material structure and phase transformations have been studyed. Solid-state reactions technique developed can be used to produce large quantities of LATP. Methods for preparation of LATP from solutions (sol-gel, microemulsion) have been developed; this methods, unlike solid-phase synthesis, allow modification of the materials and creation of core/shell structures. Modification of commercial cathode material NMC 523 has been shown to improve its performance during prolonged cyclization. It has been demonstrated that LATP-based ceramics can be used as solid electrolytes for solid-state batteries.
It has been shown that deposition of solid-state electrolyte Li1.3Ti1.7Al0.3(PO4)3 on the cathode material LiNi0.5Co0.2Mn0.3O2 can significantly improve the stability of the electrical characteristics of lithium-ion batteries during prolonged cycling and also reduce the transient resistance material and electrolyte in solid-state batteries.
Based on the synthesized material, ceramic and film samples were obtained and their electrical and chemical properties were investigated. The obtained materials were tested in the laboratory elements, the intermediate results indicate their high electrochemical stability.
Product Description
popup.authors
Bilous Anatoliy G.
V'yunov Oleg I.
Kovalenko Leonid L.
Lisovskyi Ivan V.
Solopan Serhii O.
Stupin Yurii D.
Khomenko Borys S.
popup.nrat_date
2020-04-02
