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Wu YF, Liu YN, Li C, Zhang YP, Zhang SN, Ma XB, Chen YZ, Xi ZP. The Effect of Heat Treatments and Degradation Behavior of High-Rate Dischargeability in Ti-V-based Alloys as Anode Materials for Nickel-Metal-Hydride Batteries. Z PHYS CHEM 2013. [DOI: 10.1524/zpch.2013.0297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
The phase structure and electrochemical properties of TiV2.1Ni0.4Zr0.06Cu0.03Cr0.1 alloys as anode materials for nickel-metal-hydride batteries treated at different temperatures were investigated. The alloys mainly consist of a bcc (V,Ti)H0.81 main phase and a network structure of hcp C14 laves phase, along the grain boundaries of the main phase. The lattice distortion is induced to a large extent for the sample treated at 1123 K. The electrochemical measurements indicate that the maximum discharge capacity of this sample is decreased, but improved cycling stability and high-rate dischargeability (HRD) are achieved. The deterioration behavior of the HRD for Ti-V-based alloys is discussed in the paper.
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Affiliation(s)
- Y. F. Wu
- Northwest Institute for Nonferrous Metal Research, Xi'an 710016, Volksrepublik China
| | - Y. N. Liu
- Xi'an Jiaotong University, Xi'an 710049, Volksrepublik China
| | - C.S. Li
- Northwest Institute for Nonferrous Metal Research, Xi'an 710016, Volksrepublik China
| | - Y. P. Zhang
- Northwest Institute for Nonferrous Metal Research, Xi'an 710016, Volksrepublik China
| | - S. N. Zhang
- Northwest Institute for Nonferrous Metal Research, Xi'an 710016, Volksrepublik China
| | - X. B. Ma
- Northwest Institute for Nonferrous Metal Research, Xi'an 710016, Volksrepublik China
| | - Y. Z. Chen
- Xi'an Jiaotong University, Xi'an 710049, Volksrepublik China
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