High voltage spinel cathode materials for high energy density and high rate capability Li ion rechargeable batteries
By Katiyar, Rajesh K.; Singhal, Rahul; Asmar, Karina; Valentin, Ricky & Katiyar, Ram S.
Published in Journal of Power Sources
NULL
2009
Abstract
We have synthesized LiMn1.5Ni0.4Cr0.1O4 cathode material for high energy density Li ion rechargeable batteries using sol–gel method. The synthesized materials were characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy, cyclic voltammetry and charge–discharge characteristics. It was found that phase pure materials were obtained an annealing temperature of 875 °C for 15 h. The maximum discharge capacity at a constant charge–discharge current rate 1C, 0.5C, and 0.2C were found to be about 99 mAh g-1, 110 mAh g-1, and 131 mAh g-1, respectively. The capacity retentions after 50 charge–discharge cycles were found to be about 99%, 97%, and 97.3% at discharge current rates of 0.2C, 0.5C, and 1C. The stable electrochemical behavior of the above cathode material even at high C rate, showed that it could be used for high energy density and high rate capability Li ion rechargeable batteries.
Microsoft is Ending Support for Windows 7
Microsoft will discontinue support for Windows 7 on January 14, 2020 which means Gamry will also be discontinuing support for Windows 7. If you are upgrading to Windows 10, like many companies and institutions, you need to be running Version 7 of our s oftware . Please note that only USB and Ethernet-based instruments can run in Version 7. Eligible users can download the latest version of our software through our online Client Portal .
If you haven't already registered your instrument, you can do so through the Client Portal .
Please email Technical Support if you have any questions regarding this transition. Please be sure to include your instrument model and serial number when contacting us.