Solid-State Li-Ion Batteries Operating at Room Temperature Using New Borohydride Argyrodite Electrolytes
Using a new class of (BH<sub>4</sub>)<sup>−</sup> substituted argyrodite Li<sub>6</sub>PS<sub>5</sub><i>Z</i><sub>0.83</sub>(BH<sub>4</sub>)<sub>0.17</sub>, (<i>Z</i> = Cl, I) solid electrolyt...
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MDPI AG
2020-09-01
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| Online Access: | https://www.mdpi.com/1996-1944/13/18/4028 |
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| author | Anh Ha Dao Pedro López-Aranguren Junxian Zhang Fermín Cuevas Michel Latroche |
| author_facet | Anh Ha Dao Pedro López-Aranguren Junxian Zhang Fermín Cuevas Michel Latroche |
| author_sort | Anh Ha Dao |
| collection | DOAJ |
| description | Using a new class of (BH<sub>4</sub>)<sup>−</sup> substituted argyrodite Li<sub>6</sub>PS<sub>5</sub><i>Z</i><sub>0.83</sub>(BH<sub>4</sub>)<sub>0.17</sub>, (<i>Z</i> = Cl, I) solid electrolyte, Li-metal solid-state batteries operating at room temperature have been developed. The cells were made by combining the modified argyrodite with an In-Li anode and two types of cathode: an oxide, Li<i><sub>x</sub></i><i>M</i>O<sub>2</sub> (<i>M</i> = ⅓ Ni, ⅓ Mn, ⅓ Co; so called NMC) and a titanium disulfide, TiS<sub>2</sub>. The performance of the cells was evaluated through galvanostatic cycling and Alternating Current AC electrochemical impedance measurements. Reversible capacities were observed for both cathodes for at least tens of cycles. However, the high-voltage oxide cathode cell shows lower reversible capacity and larger fading upon cycling than the sulfide one. The AC impedance measurements revealed an increasing interfacial resistance at the cathode side for the oxide cathode inducing the capacity fading. This resistance was attributed to the intrinsic poor conductivity of NMC and interfacial reactions between the oxide material and the argyrodite electrolyte. On the contrary, the low interfacial resistance of the TiS<sub>2</sub> cell during cycling evidences a better chemical compatibility between this active material and substituted argyrodites, allowing full cycling of the cathode material, 240 mAhg<sup>−1</sup>, for at least 35 cycles with a coulombic efficiency above 97%. |
| first_indexed | 2024-03-10T16:24:37Z |
| format | Article |
| id | doaj.art-9aa23890b5ab4bc8a56750f29737aee2 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T16:24:37Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-9aa23890b5ab4bc8a56750f29737aee22023-11-20T13:22:44ZengMDPI AGMaterials1996-19442020-09-011318402810.3390/ma13184028Solid-State Li-Ion Batteries Operating at Room Temperature Using New Borohydride Argyrodite ElectrolytesAnh Ha Dao0Pedro López-Aranguren1Junxian Zhang2Fermín Cuevas3Michel Latroche4University Paris Est Creteil, CNRS, ICMPE, UMR7182, 7182, 2 rue Henri Dunant, F-94320 Thiais, FranceUniversity Paris Est Creteil, CNRS, ICMPE, UMR7182, 7182, 2 rue Henri Dunant, F-94320 Thiais, FranceUniversity Paris Est Creteil, CNRS, ICMPE, UMR7182, 7182, 2 rue Henri Dunant, F-94320 Thiais, FranceUniversity Paris Est Creteil, CNRS, ICMPE, UMR7182, 7182, 2 rue Henri Dunant, F-94320 Thiais, FranceUniversity Paris Est Creteil, CNRS, ICMPE, UMR7182, 7182, 2 rue Henri Dunant, F-94320 Thiais, FranceUsing a new class of (BH<sub>4</sub>)<sup>−</sup> substituted argyrodite Li<sub>6</sub>PS<sub>5</sub><i>Z</i><sub>0.83</sub>(BH<sub>4</sub>)<sub>0.17</sub>, (<i>Z</i> = Cl, I) solid electrolyte, Li-metal solid-state batteries operating at room temperature have been developed. The cells were made by combining the modified argyrodite with an In-Li anode and two types of cathode: an oxide, Li<i><sub>x</sub></i><i>M</i>O<sub>2</sub> (<i>M</i> = ⅓ Ni, ⅓ Mn, ⅓ Co; so called NMC) and a titanium disulfide, TiS<sub>2</sub>. The performance of the cells was evaluated through galvanostatic cycling and Alternating Current AC electrochemical impedance measurements. Reversible capacities were observed for both cathodes for at least tens of cycles. However, the high-voltage oxide cathode cell shows lower reversible capacity and larger fading upon cycling than the sulfide one. The AC impedance measurements revealed an increasing interfacial resistance at the cathode side for the oxide cathode inducing the capacity fading. This resistance was attributed to the intrinsic poor conductivity of NMC and interfacial reactions between the oxide material and the argyrodite electrolyte. On the contrary, the low interfacial resistance of the TiS<sub>2</sub> cell during cycling evidences a better chemical compatibility between this active material and substituted argyrodites, allowing full cycling of the cathode material, 240 mAhg<sup>−1</sup>, for at least 35 cycles with a coulombic efficiency above 97%.https://www.mdpi.com/1996-1944/13/18/4028solid-state batteriesargyroditesionic conductivitysolid electrolytes |
| spellingShingle | Anh Ha Dao Pedro López-Aranguren Junxian Zhang Fermín Cuevas Michel Latroche Solid-State Li-Ion Batteries Operating at Room Temperature Using New Borohydride Argyrodite Electrolytes Materials solid-state batteries argyrodites ionic conductivity solid electrolytes |
| title | Solid-State Li-Ion Batteries Operating at Room Temperature Using New Borohydride Argyrodite Electrolytes |
| title_full | Solid-State Li-Ion Batteries Operating at Room Temperature Using New Borohydride Argyrodite Electrolytes |
| title_fullStr | Solid-State Li-Ion Batteries Operating at Room Temperature Using New Borohydride Argyrodite Electrolytes |
| title_full_unstemmed | Solid-State Li-Ion Batteries Operating at Room Temperature Using New Borohydride Argyrodite Electrolytes |
| title_short | Solid-State Li-Ion Batteries Operating at Room Temperature Using New Borohydride Argyrodite Electrolytes |
| title_sort | solid state li ion batteries operating at room temperature using new borohydride argyrodite electrolytes |
| topic | solid-state batteries argyrodites ionic conductivity solid electrolytes |
| url | https://www.mdpi.com/1996-1944/13/18/4028 |
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