Kenneth Lobo, Sreejesh Moolayadukkam, Savithri Vishwanathan, H. S. S. Ramakrishna Matte
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引用次数: 0
Abstract
The widespread demand for battery-powered technologies has propelled the search for efficient and commercially viable electrode materials with fast-charging abilities. Reported herein is an MoS2-expanded graphite (EG) composite as a stable and high-rate lithium-ion battery (LIB) anode, delivering specific capacities of 796 mAh g−1 at 0.5 A g−1 and 320 mAh g−1 at 20 A g−1 over 400 cycles. Cyclability at extreme rates up to 50 A g−1 (~103 mAh g−1) illustrates its scope for fast charging applications. As a result of the processing technique, the exfoliated nanosheets have good interfacial contact which aids in charge transfer and maintaining structural integrity during continuous battery operation. Further, analytical electrochemical methods suggest a predominance of pseudocapacitive charge storage mechanism, explaining the anode performance at high rates.
对电池供电技术的广泛需求推动了对具有快速充电能力的高效且商业上可行的电极材料的研究。本文报道了一种mos2膨胀石墨（EG）复合材料作为稳定的高倍率锂离子电池（LIB）阳极，在0.5 a g-1时提供796 mAh g-1的比容量，在20 a g-1时提供320 mAh g-1，超过400次循环。在高达50 A g-1 （~103 mAh g-1）的极端速率下的可循环性说明了它的快速充电应用范围。由于处理技术的结果，剥离的纳米片具有良好的界面接触，有助于在电池连续运行时电荷转移和保持结构完整性。此外，分析电化学方法表明假电容电荷存储机制占主导地位，解释了阳极在高速率下的性能。
期刊介绍：
Chemistry—An Asian Journal is an international high-impact journal for chemistry in its broadest sense. The journal covers all aspects of chemistry from biochemistry through organic and inorganic chemistry to physical chemistry, including interdisciplinary topics.
Chemistry—An Asian Journal publishes Full Papers, Communications, and Focus Reviews.
A professional editorial team headed by Dr. Theresa Kueckmann and an Editorial Board (headed by Professor Susumu Kitagawa) ensure the highest quality of the peer-review process, the contents and the production of the journal.
Chemistry—An Asian Journal is published on behalf of the Asian Chemical Editorial Society (ACES), an association of numerous Asian chemical societies, and supported by the Gesellschaft Deutscher Chemiker (GDCh, German Chemical Society), ChemPubSoc Europe, and the Federation of Asian Chemical Societies (FACS).
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