Ti2Nb10O29@C hollow submicron ribbons for superior lithium storage. Issue 16 (15th August 2022)

• Record Type: Journal Article
• Authors: Li, Hanghang; Cai, Xinhao; Li, Jing; Deng, Chenchen; Liu, Yiwen; Yan, Huihui; Yu, Haoxiang; Zhang, Liyuan; Shui, Miao; Yan, Lei; Shu, Jie
• Is Part Of: Ceramics international. Volume 48:Issue 16(2022)
• Page Start: 23334
• Page End: 23340
• Publication Date: 2022-08-15
• Subjects: Ti2Nb10O29 -- Carbon coating -- Hollow submicron ribbon -- Anode materials -- Lithium-ion batteries; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2022.04.321
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Titanium niobate prepared by traditional techniques has the shortcomings of low ion diffusion coefficient as well as poor electrical conductivity, which drastically reduce its applicability. In this work, we prepare carbon coated Ti2 Nb10 O29 hollow submicron ribbons (Ti2 Nb10 O29 @C HSR) using a simple electrospinning procedure. As anode material for lithium-ion batteries (LIBs), it delivers a high charge capacity of 259.7 mAh g −1 at 1 C with low capacity loss of 0.013% in long-term cycles. Increased the current density to 5 C, Ti2 Nb10 O29 @C HSR can maintain a reversible capacity of 189.9 mAh g −1, indicating its good rate performance. Additionally, this work uses in-situ X-ray diffraction (XRD) to provide an explanation for the lithium storage process in Ti2 Nb10 O29 @C HSR, demonstrating the high reversibility during charge/discharge cycles. Therefore, Ti2 Nb10 O29 @C HSR has outstanding cycle adaptability and structural reversibility to be a promising anode for LIBs.