A simple synthesis method for carbon-composited lithium titanium vanadium oxide as a high-energy positive electrode material for lithium-ion batteries

IF 4.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications Pub Date : 2025-03-08 DOI:10.1016/j.inoche.2025.114299

Hiroshi Nagata, Kunimitsu Kataoka

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Abstract

Improvements in energy density and cycle stability are in high demand, particularly for all-solid-state batteries, which are expected to become the next generation of batteries. Li_8/7Ti_2/7V_4/7O₂ has recently been reported as a positive electrode active material with a high theoretical capacity and has shown no degradation in sulfide-based solid-state lithium-ion batteries. This study focuses on a facile and effective method for synthesizing carbon-composited Li_8/7Ti_2/7V_4/7O₂. This approach involves concentrating a homogeneous solution containing Li, Ti, and V, followed by heat treatment at 600 °C under an Ar atmosphere for 6 h. Notably, the resulting composite (Li_8/7Ti_2/7V_4/7O₂/C) exhibited a relatively high specific capacity of over 330 mAh g⁻¹ (Li_8/7Ti_2/7V_4/7O₂/C) at 0.13 mA cm⁻² and 25 °C in a sulfide-based solid-state battery without the addition of further conductive additives, such as acetylene black.

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来源期刊

Inorganic Chemistry Communications 化学-无机化学与核化学

CiteScore

5.50

自引率

7.90%

发文量

1013

审稿时长

53 days

期刊介绍： Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.