Zhang, Kaigiang Lee, Tae Hyung Cha, Joo Hwan Varma, Rajender S. Choi, Ji-Won Jang, Ho Won Shokouhimehr, Mohammadreza 2024-01-19T19:04:14Z 2024-01-19T19:04:14Z 2021-09-04 2019-09-19 2045-2322 https://pubs.kist.re.kr/handle/201004/119562 Aluminum-ion batteries (AIBs) are regarded as promising candidates for post-lithium-ion batteries due to their lack of flammability and electrochemical performance comparable to other metal-ion batteries. The lack of suitable cathode materials, however, has hindered the development of high-performing AIBs. Sulfur is a cost-efficient material, having distinguished electrochemical properties, and is considered an attractive cathode material for AIBs. Several pioneering reports have shown that aluminum-sulfur batteries (ASBs) exhibit superior electrochemical capacity over other cathode materials for AIBs. However, a rapid decay in the capacity is a huge barrier for their practical applications. Here, we have demonstrated systematically for the first time that the two-dimensional layered materials (e.g. MoS2, WS2, and BN) can serve as fixers of S and sulfide compounds during repeated charge/discharge processes; BN/S/C displays the highest capacity of 532 mAh g(-1) (at a current density of 100 mA g(-1)) compared with the current state-of-the-art cathode material for AIBs. Further, we could improve the life-span of ASBs to an unprecedented 300 cycles with a high Coulombic efficiency of 94.3%; discharge plateaus at similar to 1.15 V vs. AlCl4-/Al was clearly observed during repeated charge/discharge cycling. We believe that this work opens up a new method for achieving high-performing ASBs. English NATURE PUBLISHING GROUP LAYER MOS2 ION GRAPHENE SHUTTLE STATIONARY REDUCTION CAPACITY CATHODE Two-dimensional boron nitride as a sulfur fixer for high performance rechargeable aluminum-sulfur batteries Article 10.1038/s41598-019-50080-9 1 SCIENTIFIC REPORTS, v.9 SCIENTIFIC REPORTS 9 scie scopus 000486568400008 2-s2.0-85072408254 Multidisciplinary Sciences Science & Technology - Other Topics Article LAYER MOS2 ION GRAPHENE SHUTTLE STATIONARY REDUCTION CAPACITY CATHODE