@article{27552, author = {Wenfeng Mao and Yanbao Fu and Hui Zhao and Guo Ai and Yiling Dai and Dechao Meng and Xin-he Zhang and Deyang Qu and Gao Liu and Vincent S Battaglia and Zhi-yuan Tang}, title = {Rational Design and Facial Synthesis of Li3V2(PO4)3@C Nanocomposites Using Carbon with Different Dimensions for Ultrahigh-Rate Lithium-Ion Batteries}, abstract = {

Li3V2(PO4)3 (LVP) particles dispersed in different inorganic carbons (LVP@C) have been successfully synthesized via an in situ synthesis method. The inorganic carbon materials with different dimensions including zero-dimensional Super P (SP) nanospheres, one-dimensional carbon nanotubes (CNTs), two-dimensional graphene nanosheets, and three-dimensional graphite particles. The effects of carbon dimensions on the structure, morphology, and electrochemical performance of LVP@C composites have been systematically investigated. The carbon materials can maintain their original morphology even after oxidation (by NH4VO3) and high-temperature sintering (850 °C). LVP@CNT exhibits the best electrochemical performances among all of the samples. At an ultrahigh discharge rate of 100C, it presents a discharge capacity of 91.94 mAh g–1 (69.13% of its theoretical capacity) and maintains 79.82% of its original capacity even after 382 cycles. Its excellent electrochemical performance makes LVP@CNT a promising cathode candidate for lithium-ion batteries.

}, year = {2015}, journal = {ACS Applied Materials & Interfaces}, volume = {7}, number = {22}, pages = {12057-12066}, month = {06/2015}, publisher = {American Chemical Society}, isbn = {1944-8244}, doi = {10.1021/acsami.5b02242}, language = {eng}, }