Reactivity of complex hydrides Mg2FeH6, Mg2CoH5 and Mg2NiH4 with lithium ion: Far from equilibrium electrochemically driven conversion reactions

Zaïdi, Warda; Bonnet, Jean-Pierre; Zhang, Junxian; Cuevas, Fermín; Latroche, M.; Couillaud, Samuel; Bobet, Jean-Louis; Sougrati, Moulay Tahar; Jumas, Jean‐Claude; Aymard, L.

doi:10.1016/j.ijhydene.2013.01.157

Cited by 57 publications

(48 citation statements)

References 40 publications

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“…Complex hydrides possess energy storage and conversion-related functions, including hydrogen storage, 1,2) lithium storage, 3,4) and fast ionic conductions. [5][6][7] LiBH 4 , a typical complex hydride, experiences a phase transition from an orthorhombic structure (low-temperature phase, LT phase) to a hexagonal structure (high-temperature phase, HT phase) at elevated temperatures and around 390 K. 8) At this point, a high lithium-ionic conductivity that exceeds log(σ/S cm −1 ) = −3 is realized in the HT phase of LiBH 4 , 5) as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Development of 4V-Class Bulk-Type All-Solid-State Lithium Rechargeable Batteries by a Combined Use of Complex Hydride and Sulfide Electrolytes for Room Temperature Operation

et al. 2017

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We have operated a 4V-class bulk-type, all-solid-state LiCoO 2 /Li battery at room temperature. The battery consisted of a Li 4 (BH 4 ) 3 I complex hydride electrolyte as the electrolyte layer, and a 80Li 2 S 20P 2 S 5 sul de glass as an electrolyte in the positive electrode layer. The assembled battery exhibited a 92 mAh g −1 initial discharge capacity at 298 K and 0.1 C. The discharge capacity for the 20 th cycle remained as high as 83 mAh g −1 , corresponding to a capacity retention ratio of nearly 90%.

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Section: Introductionmentioning

confidence: 99%

Development of 4V-Class Bulk-Type All-Solid-State Lithium Rechargeable Batteries by a Combined Use of Complex Hydride and Sulfide Electrolytes for Room Temperature Operation

et al. 2017

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“…Subsequently, several studies have investigated Li-ion storage in MgH 2 [151][152][153][154][155][156][157][158] [164]. For detailed descriptions of these results we refer to other reviews [165,166].…”

Section: Metal Hydrides As Electrode Materialsmentioning

confidence: 99%

Complex Metal Hydrides for Hydrogen, Thermal and Electrochemical Energy Storage

et al. 2017

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Hydrogen has a very diverse chemistry and reacts with most other elements to form compounds, which have fascinating structures, compositions and properties. Complex metal hydrides are a rapidly expanding class of materials, approaching multi-functionality, in particular within the energy storage field. This review illustrates that complex metal hydrides may store hydrogen in the solid state, act as novel battery materials, both as electrolytes and electrode materials, or store solar heat in a more efficient manner as compared to traditional heat storage materials. Furthermore, it is highlighted how complex metal hydrides may act in an integrated setup with a fuel cell. This review focuses on the unique properties of light element complex metal hydrides mainly based on boron, nitrogen and aluminum, e.g., metal borohydrides and metal alanates. Our hope is that this review can provide new inspiration to solve the great challenge of our time: efficient conversion and large-scale storage of renewable energy.

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“…The obtained "processing map" shows the processing window where Mg 2 FeH 6 synthesis is most efficient with the chosen method. There is still significant interest in investigation and modeling of the basic physical properties and cyclic behavior of this hydride [18][19][20][21][22][23][24][25][26]. Furthermore, studies of the influence of different additives and new synthesis routes are still within the scope of work of different teams [27][28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Mg2FeH6 Synthesis Efficiency Map

et al. 2018

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Abstract:The influences of the processing parameters on the Mg 2 FeH 6 synthesis yield were studied. Mixtures of magnesium hydride (MgH 2 ) and iron (Fe) were mechanically milled in a planetary ball mill under argon for 0.5-, 1-, 2-and 3-h periods and subsequently sintered at temperatures from 300-500 • C under hydrogen. The reaction yield, phase content and hydrogen storage properties of the received materials were investigated. The morphologies of the powders after synthesis were studied by SEM. The synthesis effectiveness map was presented. The obtained results prove that synthesis parameters, such as the milling time and synthesis temperature, greatly influence the reaction yield and material properties and show that extended mechanical milling may not be beneficial to the reaction efficiency.

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Reactivity of complex hydrides Mg2FeH6, Mg2CoH5 and Mg2NiH4 with lithium ion: Far from equilibrium electrochemically driven conversion reactions

Cited by 57 publications

References 40 publications

Development of 4V-Class Bulk-Type All-Solid-State Lithium Rechargeable Batteries by a Combined Use of Complex Hydride and Sulfide Electrolytes for Room Temperature Operation

Development of 4V-Class Bulk-Type All-Solid-State Lithium Rechargeable Batteries by a Combined Use of Complex Hydride and Sulfide Electrolytes for Room Temperature Operation

Complex Metal Hydrides for Hydrogen, Thermal and Electrochemical Energy Storage

Mg2FeH6 Synthesis Efficiency Map

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