Title:
MAGNESIUM-BASED SOLID-STATE HYDROGEN STORAGE MATERIAL WITH LIQUID PHASE REGULATION EFFECT, AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/087591
Kind Code:
A1
Abstract:
A magnesium-based solid-state hydrogen storage material with a liquid phase regulation effect, and a preparation method therefor, which belong to the technical field of new energy. The magnesium-based solid-state hydrogen storage material comprises the following raw materials in percentages by mass: 95% of magnesium hydride and 5% of lithium borohydride. The lithium borohydride (an ion conductor) in the magnesium-based solid-state hydrogen storage material is dispersed and distributed on the surface of the magnesium hydride, and the lithium borohydride acting as a coordination hydride has a coordination anion with high ion conductivity and high activity, such as BH4-, which can be used as an intermediate to promote the conduction of H- in magnesium hydride. After six cycles of hydrogen absorption and desorption, Mg grains are uniform in size, the phenomenon of grain growth is inhibited, and significant dynamic performance and cycling stability are shown. Especially during a high-temperature desorption process, hydrogen gas is separated out from a liquid phase in the form of bubbles. When the material is used in an all-solid-state battery, the impedance performance and ion conduction rate of the battery can be substantially improved.
Inventors:
LI YONGTAO (CN)
QIN ZHIKANG (CN)
DING XIAOLI (CN)
LI HAIWEN (CN)
SI TINGZHI (CN)
LIU DONGMING (CN)
ZHANG QING'AN (CN)
QIN ZHIKANG (CN)
DING XIAOLI (CN)
LI HAIWEN (CN)
SI TINGZHI (CN)
LIU DONGMING (CN)
ZHANG QING'AN (CN)
Application Number:
PCT/CN2023/094669
Publication Date:
May 02, 2024
Filing Date:
May 17, 2023
Export Citation:
Assignee:
UNIV ANHUI TECHNOLOGY (CN)
International Classes:
C01B3/00; C22C23/00; H01M10/0562
Foreign References:
| CN115448252A | 2022-12-09 | |||
| CN103264159A | 2013-08-28 | |||
| CN106981682A | 2017-07-25 | |||
| JP2011032145A | 2011-02-17 | |||
| CN1958823A | 2007-05-09 | |||
| US8153020B1 | 2012-04-10 | |||
| CN115159451A | 2022-10-11 |
Attorney, Agent or Firm:
BEIJING DONGFANGSHENGFAN IP AGENCY CO., LTD. (CN)
Download PDF: