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Hybrid TiO 2 /Graphite/Nanodiamond Anode for Realizing High Performance Lithium Ion Battery
Author(s) -
Wang Chen,
Sun Xiaochen,
Li Huiling,
Liu Junsong,
Cheng Shaoheng,
Li Hongdong,
Yuan Xiaoxi
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202004628
Subject(s) - materials science , anode , graphite , lithium (medication) , chemical engineering , electrolyte , lithium ion battery , battery (electricity) , lithium titanate , anatase , titanium dioxide , composite material , electrode , chemistry , catalysis , organic chemistry , photocatalysis , medicine , power (physics) , physics , quantum mechanics , engineering , endocrinology
In this work, the commercial detonation nanodiamonds (DNDs) are introduced to the anodes of lithium ion battery (LIBs) consisting of anatase titanium dioxide (TiO 2 ) and synthesized graphite by a microwave treatment process. The compound TiO 2 /DND/graphite anodes are favorable for improving the LIB performance, where the LIBs have lithium storage capacities of 540 mA h g −1 at 0.5 C after 100 cycles and 300 mA h g −1 at 5 C after 1000 cycles, which are greatly higher than the theoretical data (168 mA h g −1 ) from TiO 2 anode alone. The high capacity, as well as excellent cycling performance and stability of the LIBs, are attributed to the synergistic effect of DND (larger surface area, low expansion, high lithium adsorption capacity, chemical inertness), TiO 2 (high Li + insertion/extraction voltage, robust structural stability, lower volumetric expansion) and the improved ionic conductivity of the anode with additional fabricated graphitic powders.