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Full-Text Articles in Physical Sciences and Mathematics
Effects Of Al-Doping On Properties Of Ni-Rich Cathode Materials Employing Different Aluminum Sources, Dan-Feng Wang, Yi-Xiao Li, Wei-Li Wang, Yong Yang
Effects Of Al-Doping On Properties Of Ni-Rich Cathode Materials Employing Different Aluminum Sources, Dan-Feng Wang, Yi-Xiao Li, Wei-Li Wang, Yong Yang
Journal of Electrochemistry
In order to investigate the effects of Al-doping on the structure, morphology and electrochemical performance of Ni-rich layered oxides, the NCA cathode materials with a nominal chemical formula of LiNi0.8Co0.15Al0.05O2 were prepared by two methods with different aluminum sources. One was the solid phase method: the precursor (Ni0.84Co0.16(OH)2) prepared by co-precipitation was mixed with lithium and aluminum source (nano-Al2O3 or Al(NO3)3) thoroughly, and calcined at 780 ℃ for 15 h under an oxygen atmosphere. The other was the co-precipitation method: …
Recent Progress In Vanadium-Based Electrode Materials, Meng-Lei Sun, Da-Qi Zhang, Jin-Kui Feng, Jiang-Feng Ni
Recent Progress In Vanadium-Based Electrode Materials, Meng-Lei Sun, Da-Qi Zhang, Jin-Kui Feng, Jiang-Feng Ni
Journal of Electrochemistry
It is an important solution to solve energy storage problems by developing inexpensive and safe lithium-ion and sodium-ion batteries with superior performance. Vanadium-based electrode materials are promising electrode materials because of diversified chemical valences, open structures and high theoretical capacities. In the past few years, vanadium-based electrode materials such as oxides, sulfides, and phosphates have achieved a considerable development in the battery field, It is, therefore, necessary to summarize their recent research progress. In this review, we particularly highlight the key challenges that are facing in the application of vanadium materials, such as low ion diffusion coefficient and poor structural …
Cvd Preparation And Application Of 3d Graphene In Electrochemical Energy Storage, Yong-Kang Xia, Ming-Yuan Gu, Hong-Guan Yang, Xin-Zhi Yu, Bing-An Lu
Cvd Preparation And Application Of 3d Graphene In Electrochemical Energy Storage, Yong-Kang Xia, Ming-Yuan Gu, Hong-Guan Yang, Xin-Zhi Yu, Bing-An Lu
Journal of Electrochemistry
Three-dimensional (3D) graphene combinations with the excellent intrinsic properties of graphene and the 3D micro/nano porous structures provide a graphene foam with high specific surface area, excellent mechanical strength and fast electron and mass transports. The 3D graphene foam and its composite nanomaterials are widely used in the fields of nano-electronics, energy storage, chemical and biological sensing. The 3D graphene foam prepared by chemical vapor deposition (CVD) method is of high purity and crystallinity. In this review, a brief overview in the CVD preparations of 3D graphene and properties of CVD prepared 3D graphene based nanomaterials in electrochemical energy storage …