摘要
能源危机促使可再生新能源得到快速发展,其中氢能具有广阔的发展前景。氢燃料电池汽车是氢能应用的一个重要领域。开发超高压化学热压缩储氢合金,将加氢站供氢压力由目前的45 MPa提高至90 MPa,可以满足车载储氢系统压力由35~70 MPa的提升需求,进而提高其一次加注的续航里程,大大促进氢燃料电池汽车的商业化发展。Ti基AB2型Laves相储氢合金具有较高的坪台压与吸氢量,较小的滞后系数以及良好的动力学性能,有望作为超高压化学热压缩储氢合金应用于加氢站中。综述了Ti基Laves相储氢合金研究概况,包括Ti-Mn基以及Ti-Cr基AB2型储氢合金,介绍了Ti-Mn基合金非化学计量、元素替代以及退火热处理的改性研究方法;重点介绍了Ti-Cr基储氢合金的合金化方法,包括A侧Zr对Ti的元素替代以及B侧Mn, Fe, V等元素对Cr的替代,同时总结分析了元素替代引起的合金储氢性能规律性变化,为研究开发综合性能优良的超高坪台压化学热压缩储氢合金提供参考。
Energy crisis promotes the rapid development of renewable energy, and hydrogen energy has a broad prospect for development. Hydrogen fuel cell vehicle is an important field in which hydrogen energy is applied. To develop chemical heat compression hydrogen storage alloys with super-high pressure will improve the hydrogen fuelling ability of the hydrogen fuelling stations from 45 to 90 MPa, which can satisfy the pressure improvement of on-board hydrogen storage system from 35 to 70 MPa, and thus improve the driving length of the one-time filling. Furthermore, it′ll promote the commercialized development of hydrogen fuel cell vehicles. Ti-based AB2 Laves phase hydrogen storage alloy has comparatively high plateau pressure and hydrogen storage capacity, small hysteresis coefficient and good kinetic performance, thus it is hopeful to be used in the hydrogen stations as super-high pressure chemical heat compression hydrogen storage alloy. Research in Ti-based Laves phase hydrogen storage alloys was reviewed in this article, including Ti-Mn-based and Ti-Cr-based AB2 alloys. The modification research methods including non-stoichiometry, elemental substitution and annealing heat treatment were introduced for the Ti-Mn-based alloys, and the alloying method of Ti-Cr-based hydrogen storage alloys was emphatically introduced, including elemental substitution of Zr to Ti on the A side and B side elemental substitution of Cr from Mn, Fe, V, etc., which would provide references for the development of super-high pressure chemical heat compression hydrogen storage alloys with high combined performances.
作者
李硕
王树茂
盛鹏
李志念
武媛方
郭秀梅
Li Shuo;Wang Shumao;Sheng Peng;Li Zhinian;Wu Yuanfang;Guo Xiumei(InstUute of Energy Materials and Technology, General Research Institute for Nonferrous Metals, Beijing 100088, China;State Key Laboratory of Advanced Transmission Technology, Global Energy Interconnection Research Insti-tute Co.Ltd,Beijing 102209, China)
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2019年第7期754-764,共11页
Chinese Journal of Rare Metals
基金
北京市科技计划项目(Z171100000917012)
国家电网公司科技项目(SGRIDGKJ[2016]123)资助
关键词
LAVES相
化学热压缩
Ti基储氢合金
合金化
Laves phase
chemical heat compression
Ti-based hydrogen storage alloys
alloying method
