A low dimensional composite of hexagonal lithium manganese borate (LiMnBO3), a cathode material for Li-ion batteries

2014 ◽  
Vol 2 (44) ◽  
pp. 18946-18951 ◽  
Author(s):  
Semih Afyon ◽  
Dipan Kundu ◽  
Azad J. Darbandi ◽  
Horst Hahn ◽  
Frank Krumeich ◽  
...  

The nano h-LiMnBO3 composite delivers a high first discharge capacity of 140 mA h g−1 at C/15 rate within a reduced potential window.

RSC Advances ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 1612-1618 ◽  
Author(s):  
Min Wang ◽  
Meng Yang ◽  
Liqun Ma ◽  
Xiaodong Shen

Ti-doped Li2Mn1−xTixSO4samples exhibit superior rate capability. Even at a higher rate (2 C) the samples keep a discharge capacity of around 700 mA h g−1, whereas the undoped sample only delivers a discharge capacity of ca. 5 mA h g−1.


2011 ◽  
Vol 65 (3) ◽  
pp. 287-293 ◽  
Author(s):  
Milica Vujkovic ◽  
Nikola Cvjeticanin ◽  
Nemanja Gavrilov ◽  
Ivana Stojkovic ◽  
Slavko Mentus

The electrolytic solutions of contemporary Li-ion batteries are made exclusively with the organic solvents since anodic materials of these batteries have potentials with greater negativity than the potential of the water reduction, thus the organic electrolytes can withstand the voltages of 3-5 V that are characteristic for these batteries. Ever since it was discovered that some materials can electrochemically intercalate and deintercalate Li+ ions in aqueous solutions, numerous studies have been conducted with the aim of extending operational time of the aqueous Li-ion batteries. Manganese oxide has been studied as the electrode material in rechargeable lithium-ion batteries with organic electrolytes. In this paper its electrochemical behavior as an anode material in aqueous electrolyte solutions was examined. MnO2 as a component of nanodispersed MnO2/C (Vulcan?) composite was successfully synthesized hydrothermally. Electrochemical properties of this material were investigated in aqueous saturated LiNO3 solution by both cyclic voltammetry and galvanostatic charging/discharging (LiMn2O4 as cathode material) techniques. The obtained composite shows a relatively good initial discharge capacity of 96.5 mAh/g which, after 50th charging/discharging cycles, drops to the value of 57mAh/g. MnO2/C (Vulcan?) composite, in combination with LiMn2O4 as a cathode material, shows better discharge capacity compared to other anodic materials used in aqueous Li-ion batteries according to certain studies that have been conducted. Its good reversibility and cyclability, and the fact that hydrothermal method is simple and effective, makes MnO2/C(Vulcan?) composite a promising anodic material for aqueous Li-ion batteries.


RSC Advances ◽  
2016 ◽  
Vol 6 (38) ◽  
pp. 32365-32369 ◽  
Author(s):  
Zhen Wang ◽  
Heng Liu ◽  
Jian Wu ◽  
Woon-Ming Lau ◽  
Jun Mei ◽  
...  

Hierarchical LiNi0.8Co0.15Al0.05O2 plates with exposed {010} active planes deliver a discharge capacity of 124 mA h g−1 at 10C.


2015 ◽  
Vol 3 (7) ◽  
pp. 3547-3558 ◽  
Author(s):  
Huanqiao Song ◽  
Yaguang Liu ◽  
Cuiping Zhang ◽  
Chaofeng Liu ◽  
Guozhong Cao

A new Mo-doped LiV3O8 nanorod-assembled nanosheet was prepared by a simple hydrothermal method and subsequent calcination. Its unique structure demonstrates a maximum discharge capacity of 269 mAh g−1 at 300 mA g−1 within 4.0-2.0 V, and excellent rate and cycle performance for Li-ion batteries.


RSC Advances ◽  
2015 ◽  
Vol 5 (95) ◽  
pp. 78209-78214 ◽  
Author(s):  
Feifan Guo ◽  
Xiaoxin Zou ◽  
Kai-Xue Wang ◽  
Yipu Liu ◽  
Feng Zhang ◽  
...  

The porous N-doped carbon stabilized Li3V2(PO4)3 particles are obtained by using a modified sol–gel method, and the composite exhibits a high discharge capacity of 114.7 mA h g−1 at 1 C in the voltage range of 3–4.3 V after 600 cycles.


2018 ◽  
Vol 11 (4) ◽  
pp. 926-932 ◽  
Author(s):  
Robert A. House ◽  
Liyu Jin ◽  
Urmimala Maitra ◽  
Kazuki Tsuruta ◽  
James W. Somerville ◽  
...  

A new high performance cathode material for Li-ion batteries with a disordered rocksalt structure powered by manganese and oxygen redox.


2021 ◽  
Vol 366-367 ◽  
pp. 115661
Author(s):  
Xinhua Zhai ◽  
Panpan Zhang ◽  
Hui Huang ◽  
Jianfeng Zhou ◽  
Xiaobo Li ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document