Tran Quang Nhat, Park Chan Ho, Le Thi Hoa
Department of Chemical and Biological Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Republic of Korea.
Polymers (Basel). 2024 Mar 2;16(5):691. doi: 10.3390/polym16050691.
Nanocrystalline cellulose (NCC) can be converted into carbon materials for the fabrication of lithium-ion batteries (LIBs) as well as serve as a substrate for the incorporation of transition metal oxides (TMOs) to restrain the volume expansion, one of the most significant challenges of TMO-based LIBs. To improve the electrochemical performance and enhance the longer cycling stability of LIBs, a nanocrystalline cellulose-supported iron oxide (FeO) composite (denoted as NCC-FeO) is synthesized and utilized as electrodes in LIBs. The obtained NCC-FeO electrode exhibited stable cycling performance, better capacity, and high-rate capacity, and delivered a specific discharge capacity of 576.70 mAh g at 100 mA g after 1000 cycles. Moreover, the NCC-FeO electrode was restored and showed an upward trend of capacity after working at high current densities, indicating the fabricated composite is a promising approach to designing next-generation high-energy density lithium-ion batteries.
纳米晶纤维素（NCC）可转化为用于制造锂离子电池（LIBs）的碳材料，还可作为掺入过渡金属氧化物（TMOs）的基底，以抑制体积膨胀，这是基于TMO的LIBs面临的最重大挑战之一。为了提高LIBs的电化学性能并增强其更长的循环稳定性，合成了一种纳米晶纤维素负载的氧化铁（FeO）复合材料（记为NCC-FeO），并将其用作LIBs的电极。所制备的NCC-FeO电极表现出稳定的循环性能、更好的容量和高倍率容量，在100 mA g下经过1000次循环后，其比放电容量为576.70 mAh g。此外，NCC-FeO电极在高电流密度下工作后恢复，且容量呈上升趋势，这表明所制备的复合材料是设计下一代高能量密度锂离子电池的一种有前景的方法。
