Potassium ferrous ferricyanide nanoparticles as a high capacity and ultralong life cathode material for nonaqueous potassium-ion batteries

2017 ◽  
Vol 5 (43) ◽  
pp. 22465-22471 ◽  
Author(s):  
Shaokun Chong ◽  
Yuanzhen Chen ◽  
Yang Zheng ◽  
Qiang Tan ◽  
Chengyong Shu ◽  
...  
Keyword(s):  
Solid Solution ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
Structural Stability ◽  
High Capacity ◽  
Potassium Ion ◽  
Electrochemical Reversibility ◽  
High Structural Stability ◽  
Cubic Structure ◽  
Solution Mechanism

KFeII[FeIII(CN)6] with a symmetric cubic structure exhibits exceptional electrochemical performance based on a solid solution mechanism, and its high structural stability and electrochemical reversibility.

Nano-size porous carbon spheres as a high-capacity anode with high initial coulombic efficiency for potassium-ion batteries

2020 ◽  
Vol 5 (5) ◽  
pp. 895-903 ◽  
Author(s):  
Hehe Zhang ◽  
Chong Luo ◽  
Hanna He ◽  
Hong-Hui Wu ◽  
Li Zhang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Porous Carbon ◽  
Coulombic Efficiency ◽  
High Capacity ◽  
Potassium Ion ◽  
Carbon Spheres ◽  
Hard Carbon ◽  
Porous Carbon Spheres ◽  
Nano Size ◽  
Initial Coulombic Efficiency

An anode of hard carbon spheres with both small size and a porous structure enables superior electrochemical performance of potassium-ion batteries.

Synthesis, Characterization and Electrochemical Performance of Li2Mn0.7Fe0.3SiO4 Prepared from Solid-state Reaction

2009 ◽  
Vol 620-622 ◽  
pp. 17-20 ◽  
Author(s):  
Wen Gang Liu ◽  
Yun Hua Xu ◽  
Rong Yang
Keyword(s):  
Solid State ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
Solid State Reaction ◽  
High Capacity ◽  
Reversible Capacity ◽  
Solid State Reaction Method ◽  
Cycle Life ◽  
Solution Route ◽  
Better Than

Li2MSiO4(M=Mn, Co, Ni) is a potential high capacity cathode material because of its outstanding properties that exchange of two electrons per transition metal atom is possible and the theoretical capacity of Li2MSiO4 can reach as high as 330 mAhg-1. In this family, the cathode performance of Li2MnSiO4 synthesized by solution route has been published recently. However, it seems that the cycle life of Li2MnSiO4 fell short of our expectation. In this work, the Li2Mn0.7Fe0.3SiO4 cathode material was synthesized by traditional solid-state reaction method. The prepared powder was consisted of majority of Li2Mn0.7Fe0.3SiO4 and minor impurities which were examined by XRD. FESEM morphology showed that the products of Li2Mn0.7Fe0.3SiO4 and Li2MnSiO4 have similar particle size (about 50-300 nm). The electrochemical performance of Li2Mn0.7Fe0.3SiO4, especially for reversible capacity and cycle life, exhibited better than those of Li2MnSiO4.

Improved structural stability and electrochemical performance of Na3V2 (PO4)3 cathode material by Cr doping

Ionics ◽  
2016 ◽  
Vol 23 (5) ◽  
pp. 1097-1105 ◽  
Author(s):  
Yanli Ruan ◽  
Kun Wang ◽  
Shidong Song ◽  
Jingjing Liu ◽  
Xu Han
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Structural Stability ◽  
Cr Doping

Research Progress of Layered xLi2MnO3-(1-x) LiMO2(M=Ni,Co,Mn...) Solid Solution Materials

2013 ◽  
Vol 860-863 ◽  
pp. 876-880
Author(s):  
Xiao Lei Yuan ◽  
Qun Jie Xu ◽  
Xue Jin ◽  
Luo Zeng Zhou
Keyword(s):  
Solid Solution ◽  
Cathode Material ◽  
High Capacity ◽  
Development Trend ◽  
High Energy ◽  
Synthetic Methods ◽  
High Energy Density ◽  
Research Progress ◽  
Discharge Mechanism ◽  
Charge Discharge

Li-rich layered xLi2MnO3-(1-x) LiMO2(M=Ni,Co,Mn...) solid solution materials possess high energy density, high capacity, and long cycle life. Meanwhile, the electrochemical charge/discharge mechanism is quite different. In this paper, Li-rich cathode material xLi2MnO3-(1-x) LiMO2(M=Ni,Co,Mn...) is introduced though its structure, charge/discharge mechanism, synthetic methods and electrochemical performance. What is more, the characteristics and development trend of this series of cathode material are summarized.

Electrochemical Performance of a Layered-Spinel Integrated Li[Ni1/3Mn2/3]O2 as a High Capacity Cathode Material for Li-Ion Batteries

2015 ◽  
Vol 27 (7) ◽  
pp. 2600-2611 ◽  
Author(s):  
Prasant Kumar Nayak ◽  
Judith Grinblat ◽  
Mikhael D. Levi ◽  
Ortal Haik ◽  
Elena Levi ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
High Capacity ◽  
Li Ion Batteries ◽  
Li Ion

Al-doped VO2(B) nanobelts as cathode material with enhanced electrochemical properties for lithium-ion batteries

2018 ◽  
Vol 11 (04) ◽  
pp. 1850068 ◽  
Author(s):  
Changlei Niu
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Valence State ◽  
Electrode Materials ◽  
High Capacity ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Free Standing ◽  
Lattice Volume

Aluminium has shown its superiority in stabilization of the monoclinic VO2(B) in free-standing nanobelts. In this paper, aluminium-doped VO2(B) nanobelts are successfully fabricated by a facile one-step hydrothermal method and used as cathode for lithium-ion battery. XPS results show that Al-doping promotes the formation of high valence state of vanadium in VO2(B) nanobelts. Due to the accommodation of valence state of vanadium and lattice volume, Al-doped VO2(B) nanobelts used as the cathode material for lithium-ion batteries exhibit better lithium storage properties with high capacity of 172[Formula: see text]mAh[Formula: see text]g[Formula: see text] and cycling stability than undoped VO2(B) nanobelts. This work demonstrates that the doping of aluminium can significantly enhance the electrochemical performance of VO2(B), suggesting that appropriate cationic doping is an efficient path to improve the electrochemical performance of electrode materials.

LiFe1-xMnxPO4/C COMPOSITE AS CATHODE MATERIAL FOR LITHIUM ION BATTERY

2011 ◽  
Vol 04 (04) ◽  
pp. 319-322 ◽  
Author(s):  
AI FANG LIU ◽  
ZU BIAO WEN ◽  
YA FEI LIU ◽  
ZHONG HUA HU
Keyword(s):  
Electron Microscope ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Battery ◽  
Average Particle Size ◽  
High Capacity ◽  
Lithium Ion ◽  
Carbon Layer ◽  
Average Particle ◽  
Charge Discharge

LiFe 1-x Mn x PO 4/ C composites were prepared as cathode material for lithium ion battery via solid-state reaction and using glucose as reducing agent and carbon source. The crystal structure and morphology were investigated by X-ray diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM). The resultant samples were pure olivine compounds with an orthorhombic structure. Their electrochemical performance was studied by galvanostatic charge–discharge test and cyclic voltammetry. The results showed that the sample LiFe0.8Mn0.2PO4/C with an average particle size of 400 nm exhibited the largest discharge capacity of 150 mAh g-1, excellent reversibility of charge–discharge and high capacity retention of 97% after a 50-cycle CV scanning. The improved electrical conductivity corresponding to the fine carbon layer around the LiFe0.8Mn0.2PO4 individual particle can be responsible for all these excellent electrochemical performance.

Sign in / Sign up

Export Citation Format

Share Document