Journal Article

Synergistically Boosting Li Storage Performance of MnWOsub.4 Nanorods Anode via Carbon Coating and Additives

Wang, Limin, Feng, Ming, Wang, Duo, Yin, Dongming, Cheng, Yong, Wang, Zhaomin, Liang, Yao, Wang, Chunli

2024

Overview

Polyanionic structures, (MO[sub.4])[sup.n−] [sub.,] can be beneficial to the transport of lithium ions by virtue of the open three-dimensional frame structure. However, an unstable interface suppresses the life of the (MO[sub.4])[sup.n−]-based anode. In this study, MnWO[sub.4]@C nanorods with dense nanocavities have been synthesized through a hydrothermal route, followed by a chemical deposition method. As a result, the MnWO[sub.4]@C anode exhibits better cycle and rate performance than MnWO[sub.4] as a Li-ion battery; the capacity is maintained at 718 mAh g[sup.−1] at 1000 mA g[sup.−1] after 400 cycles because the transport of lithium ions and the contribution of pseudo-capacitance are increased. Generally, benefiting from the carbon shell and electrolyte additive (e.g., FEC), the cycle performance of the MnWO[sub.4]@C electrode is also effectively improved for lithium storage.

• Publisher: MDPI AG
• Subject: Batteries