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Chen Z, Wang T, Liu M, Duan P, Xiong F, Zhou Y, Yan Z, Yang W, Chen H, Yang Z, Li C. Polycrystal Li 2ZnTi 3O 8/C anode with lotus seedpod structure for high-performance lithium storage. Front Chem 2023; 11:1135325. [PMID: 37228863 PMCID: PMC10203149 DOI: 10.3389/fchem.2023.1135325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 04/24/2023] [Indexed: 05/27/2023] Open
Abstract
Lotus-seedpod structured Li2ZnTi3O8/C (P-LZTO) microspheres obtained by the molten salt method are reported for the first time. The received phase-pure Li2ZnTi3O8 nanoparticles are inserted into the carbon matrix homogeneously to form a Lotus-seedpod structure, as confirmed by the morphological and structural measurements. As the anode for lithium-ion batteries, the P-LZTO material demonstrates excellent electrochemical performance with a high rate capacity of 193.2 mAh g-1 at 5 A g-1 and long-term cyclic stability up to 300 cycles at 1 A g-1. After even 300 cyclings, the P-LZTO particles can maintain their morphological and structural integrity. The superior electrochemical performances have arisen from the unique structure where the polycrystalline structure is beneficial for shorting the lithium-ion diffusion path, while the well-encapsulated carbon matrix can not only enhance the electronic conductivity of the composite but also alleviate the stress anisotropy during lithiation/delithiation process, leading to well-preserved particles.
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Affiliation(s)
- Zhanjun Chen
- Modern Industry School of Advanced Ceramics, Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, School of Materials and Environmental Engineering, Hunan University of Humanities, Science and Technology, Loudi, China
| | - Tao Wang
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, Guangdong, China
| | - Meihuang Liu
- Modern Industry School of Advanced Ceramics, Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, School of Materials and Environmental Engineering, Hunan University of Humanities, Science and Technology, Loudi, China
| | - Panyu Duan
- Modern Industry School of Advanced Ceramics, Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, School of Materials and Environmental Engineering, Hunan University of Humanities, Science and Technology, Loudi, China
| | - Feng Xiong
- Modern Industry School of Advanced Ceramics, Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, School of Materials and Environmental Engineering, Hunan University of Humanities, Science and Technology, Loudi, China
| | - Yang Zhou
- Modern Industry School of Advanced Ceramics, Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, School of Materials and Environmental Engineering, Hunan University of Humanities, Science and Technology, Loudi, China
| | - Zhenyu Yan
- Modern Industry School of Advanced Ceramics, Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, School of Materials and Environmental Engineering, Hunan University of Humanities, Science and Technology, Loudi, China
| | - Wei Yang
- Modern Industry School of Advanced Ceramics, Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, School of Materials and Environmental Engineering, Hunan University of Humanities, Science and Technology, Loudi, China
| | - Han Chen
- School of Materials and Environmental Engineering, Changsha University, Changsha, China
| | - Zhenyu Yang
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, Guangdong, China
| | - Chao Li
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, Guangdong, China
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Qian M, Tang Y, Liu L, Zhang Y, Gao Y, Li X, Liu T. Optimizing the rate performance and cycle life of Li2MTi3O8 (M=Mn, Co, Zn)/CNTs for lithium-ion battery anodes by constructing one-dimensional carbon-based hybrid structure. Dalton Trans 2022; 51:14032-14035. [DOI: 10.1039/d2dt02395d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One-dimensional nanohybrids Li2MTi3O8/CNTs (M = Mn, Co, Zn), i.e., Li2MTi3O8 nanoparticles embedded in carbon nanotubes, are synthesized by the combined means involving in sol-gel, solid phase grinding and calcination. As...
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