• N MUNICHANDRAIAH

Articles written in Bulletin of Materials Science

• Electrochemical impedance studies of capacity fading of electrodeposited ZnO conversion anodes in Li-ion battery

Electrodeposited ZnO coatings suffer severe capacity fading when used as conversion anodes in sealed Li cells. Capacity fading is attributed to (i) the large charge transfer resistance, $R_{\rm ct}$ (300–700 $\Omega$) and (ii) the low Li$^+$ ion diffusion coefficient, D$^+_{\rm Li}$ (10$^{−15}$ to 10$^{−13}$ cm$^2$ s$^{−1}$). The measured value of R$_{\rm ct}$ is nearly 10 times higher and D$^+_{\rm Li}$ 10–100 times lower than the corresponding values for Cu$_2$O, which delivers a stable reversible capacity.

• Facile one-pot solvothermal synthesis of NiCoP and its electrochemical performance as anode for lithium ion battery

Herein, NiCoP is synthesized by simple solvothermal route and characterized for physicochemical properties and electrochemical characteristics. X-ray diffraction (XRD) confirms that the sample is formed in a pure phase. Cyclic voltammograms and charge–discharge profiles of electrodes exhibit peaks/plateaus corresponding to lithium intercalation/de-intercalation, which is characteristic of battery behaviour. The electrochemical evaluation as an anode for lithium ion batteries are studied in the 0.05–3.00 V range. With a high discharge capacity of 468 mAh g$^{–1}$ at C/10 rate in the very beginning, excellent cycling stability and superior rate performance, NiCoP proves to be a potential candidate for anode material of lithium ion battery.

• # Bulletin of Materials Science

Volume 45, 2022
All articles
Continuous Article Publishing mode

• # Dr Shanti Swarup Bhatnagar for Science and Technology

Posted on October 12, 2020

Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020