Direct Nano‐Synthesis Methods Notably Benefit Mg‐Battery Cathode Performance

Blanc, Lauren E.; Sun, Xiaoqi; Shyamsunder, Abhinandan; Duffort, Victor; Nazar, Linda F.

Type de document :

Article dans une revue scientifique: Article original

DOI :

10.1002/smtd.202000029

URL permanente :

http://hdl.handle.net/20.500.12210/18936

Titre :

Direct Nano‐Synthesis Methods Notably Benefit Mg‐Battery Cathode Performance

Auteur(s) :

Blanc, Lauren E. [Auteur]
Department of Chemistry [Waterloo]
Sun, Xiaoqi [Auteur]
Department of Chemistry [Waterloo]
Shyamsunder, Abhinandan [Auteur]
Department of Chemistry [Waterloo]
Duffort, Victor [Auteur]

Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Department of Chemistry [Waterloo]
Nazar, Linda F. [Auteur]
Department of Chemistry [Waterloo]

Titre de la revue :

Small Methods

Nom court de la revue :

Small Methods

Pagination :

2000029

Éditeur :

Wiley

Date de publication :

2020-02-25

Discipline(s) HAL :

Chimie/Chimie inorganique

Résumé en anglais : [en]

Rechargeable magnesium batteries are promising candidates for next-generation electrochemical energy storage, but their development is severely hindered by sluggish solid-state diffusion and significant desolvation penalties ...
Lire la suite >Rechargeable magnesium batteries are promising candidates for next-generation electrochemical energy storage, but their development is severely hindered by sluggish solid-state diffusion and significant desolvation penalties of the divalent cation. Studies suggest that nano-sized electrode materials alleviate these issues by shortening diffusion lengths and increasing electrode/electrolyte interaction. Here, the effect of particle size and synthetic methodology on the electrochemical performance of four sulfide cathode materials in Mg batteries is investigated: layered TiS2, CuS, spinel Ti2S4, and CuCo2S4. In these sulfide hosts, the direct preparation of nano-dimensional crystallites is critical to activate or improve electrochemistry. Even promising cathode materials can appear electrochemically inert when micron-sized particles are investigated (e.g., CuCo2S4), and mechanical milling leads to surface degradation of active material which severely limits performance. However, nano-sized CuCo2S4 prepared directly reaches a capacity nearly double that of ball-milled material and delivers 350 mAh g−1 at 60 °C. This work provides synthetic considerations which may be crucial in the discovery and design of novel Mg cathode materials, so that promising candidates are not overlooked. By extension, in oxide materials where Mg2+ diffusion is expected to be much more sluggish, this factor is anticipated to be even more important when screening for new hosts.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Équipe(s) de recherche :

Matériaux inorganiques, structures, systèmes et propriétés (MISSP)

Date de dépôt :

2020-03-26T21:10:45Z
2020-04-09T08:00:49Z
2021-01-04T10:56:59Z
2021-01-05T16:00:06Z

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Historique des modifications

Numéro de version	Lien	Date de modification
4	20.500.12210/18936*	2021-01-05T15:59:46Z
3	20.500.12210/18936.3	2021-01-04T10:56:17Z
2	20.500.12210/18936.2	2020-04-01T09:39:47Z
1	20.500.12210/18936.1	2020-03-26T21:10:45Z

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