An experimental high temperature thermal battery coupled to a low temperature metal hydride for solar thermal energy storage
© 2019 The Royal Society of Chemistry. Metal hydrides have demonstrated ideal physical properties to be the next generation of thermal batteries for solar thermal power plants. Previous studies have demonstrated that they already operate at the required operational temperature and offer greater...
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| Format: | Journal Article |
| Language: | English |
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ROYAL SOC CHEMISTRY
2019
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| Online Access: | http://purl.org/au-research/grants/arc/LP120101848 http://hdl.handle.net/20.500.11937/82099 |
| _version_ | 1848764474428751872 |
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| author | Poupin, Lucas Humphries, Terry Paskevicius, Mark Buckley, Craig |
| author_facet | Poupin, Lucas Humphries, Terry Paskevicius, Mark Buckley, Craig |
| author_sort | Poupin, Lucas |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2019 The Royal Society of Chemistry.
Metal hydrides have demonstrated ideal physical properties to be the next generation of thermal batteries for solar thermal power plants. Previous studies have demonstrated that they already operate at the required operational temperature and offer greater energy densities than existing technology. Thermal batteries using metal hydrides need to store hydrogen gas released during charging, and so far, practical demonstrations have employed volumetric storage of gas. This practical study utilises a low temperature metal hydride, titanium manganese hydride (TiMn1.5Hx), to store hydrogen gas, whilst magnesium iron hydride (Mg2FeH6) is used as a high temperature thermal battery. The coupled system is able to achieve consistent energy storage and release cycles. With titanium manganese hydride operating at ambient temperature (20 °C), Mg2FeH6 has to operate between ∼350 °C and ∼500 °C to counteract the pressure hysteresis displayed by TiMn1.5 between hydrogen uptake and release. The results attest the high susceptibility of both materials to thermal issues, such as a requirement for large temperature offsets, in order for the battery to achieve full cycling capacity. An energy density of 1488 kJ kg-1 was experimentally attained for 40 g of Mg2FeH6 with a maximum operating temperature around 520 °C. |
| first_indexed | 2025-11-14T11:19:56Z |
| format | Journal Article |
| id | curtin-20.500.11937-82099 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:19:56Z |
| publishDate | 2019 |
| publisher | ROYAL SOC CHEMISTRY |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-820992021-02-16T02:45:30Z An experimental high temperature thermal battery coupled to a low temperature metal hydride for solar thermal energy storage Poupin, Lucas Humphries, Terry Paskevicius, Mark Buckley, Craig Science & Technology Physical Sciences Technology Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Materials Science MAGNESIUM HYDROGEN FE SYSTEM IRON MG2FEH6 © 2019 The Royal Society of Chemistry. Metal hydrides have demonstrated ideal physical properties to be the next generation of thermal batteries for solar thermal power plants. Previous studies have demonstrated that they already operate at the required operational temperature and offer greater energy densities than existing technology. Thermal batteries using metal hydrides need to store hydrogen gas released during charging, and so far, practical demonstrations have employed volumetric storage of gas. This practical study utilises a low temperature metal hydride, titanium manganese hydride (TiMn1.5Hx), to store hydrogen gas, whilst magnesium iron hydride (Mg2FeH6) is used as a high temperature thermal battery. The coupled system is able to achieve consistent energy storage and release cycles. With titanium manganese hydride operating at ambient temperature (20 °C), Mg2FeH6 has to operate between ∼350 °C and ∼500 °C to counteract the pressure hysteresis displayed by TiMn1.5 between hydrogen uptake and release. The results attest the high susceptibility of both materials to thermal issues, such as a requirement for large temperature offsets, in order for the battery to achieve full cycling capacity. An energy density of 1488 kJ kg-1 was experimentally attained for 40 g of Mg2FeH6 with a maximum operating temperature around 520 °C. 2019 Journal Article http://hdl.handle.net/20.500.11937/82099 10.1039/c9se00538b English http://purl.org/au-research/grants/arc/LP120101848 http://purl.org/au-research/grants/arc/LP150100730 http://purl.org/au-research/grants/arc/LE0989180 http://purl.org/au-research/grants/arc/LE0775551 http://purl.org/au-research/grants/arc/FT160100303 ROYAL SOC CHEMISTRY fulltext |
| spellingShingle | Science & Technology Physical Sciences Technology Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Materials Science MAGNESIUM HYDROGEN FE SYSTEM IRON MG2FEH6 Poupin, Lucas Humphries, Terry Paskevicius, Mark Buckley, Craig An experimental high temperature thermal battery coupled to a low temperature metal hydride for solar thermal energy storage |
| title | An experimental high temperature thermal battery coupled to a low temperature metal hydride for solar thermal energy storage |
| title_full | An experimental high temperature thermal battery coupled to a low temperature metal hydride for solar thermal energy storage |
| title_fullStr | An experimental high temperature thermal battery coupled to a low temperature metal hydride for solar thermal energy storage |
| title_full_unstemmed | An experimental high temperature thermal battery coupled to a low temperature metal hydride for solar thermal energy storage |
| title_short | An experimental high temperature thermal battery coupled to a low temperature metal hydride for solar thermal energy storage |
| title_sort | experimental high temperature thermal battery coupled to a low temperature metal hydride for solar thermal energy storage |
| topic | Science & Technology Physical Sciences Technology Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Materials Science MAGNESIUM HYDROGEN FE SYSTEM IRON MG2FEH6 |
| url | http://purl.org/au-research/grants/arc/LP120101848 http://purl.org/au-research/grants/arc/LP120101848 http://purl.org/au-research/grants/arc/LP120101848 http://purl.org/au-research/grants/arc/LP120101848 http://purl.org/au-research/grants/arc/LP120101848 http://hdl.handle.net/20.500.11937/82099 |