All-Solid-State Lithium-Ion Batteries with Oxide/Sulfide Composite Electrolytes
Li<sub>6.3</sub>La<sub>3</sub>Zr<sub>1.65</sub>W<sub>0.35</sub>O<sub>12</sub> (LLZO)-Li<sub>6</sub>PS<sub>5</sub>Cl (LPSC) composite electrolytes and all-solid-state cells containing LLZO-LPSC were fabricated by cold...
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| Online Access: | https://www.mdpi.com/1996-1944/14/8/1998 |
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| author | Young Seon Park Jae Min Lee Eun Jeong Yi Ji-Woong Moon Haejin Hwang |
| author_facet | Young Seon Park Jae Min Lee Eun Jeong Yi Ji-Woong Moon Haejin Hwang |
| author_sort | Young Seon Park |
| collection | DOAJ |
| description | Li<sub>6.3</sub>La<sub>3</sub>Zr<sub>1.65</sub>W<sub>0.35</sub>O<sub>12</sub> (LLZO)-Li<sub>6</sub>PS<sub>5</sub>Cl (LPSC) composite electrolytes and all-solid-state cells containing LLZO-LPSC were fabricated by cold pressing at room temperature. The LPSC:LLZO ratio was varied, and the microstructure, ionic conductivity, and electrochemical performance of the corresponding composite electrolytes were investigated; the ionic conductivity of the composite electrolytes was three or four orders of magnitude higher than that of LLZO. The high conductivity of the composite electrolytes was attributed to the enhanced relative density and the rule of mixture for soft LPSC particles with high lithium-ion conductivity (~10<sup>−4</sup> S·cm<sup>−1</sup>). The specific capacities of all-solid-state cells (ASSCs) consisting of a LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> (NCM811) cathode and the composite electrolytes of LLZO:LPSC = 7:3 and 6:4 were 163 and 167 mAh·g<sup>−1</sup>, respectively, at 0.1 C and room temperature. Moreover, the charge–discharge curves of the ASSCs with the composite electrolytes revealed that a good interfacial contact was successfully formed between the NCM811 cathode and the LLZO-LPSC composite electrolyte. |
| first_indexed | 2024-03-10T12:16:35Z |
| format | Article |
| id | doaj.art-8bb4dd9eda80422a9835884169b8aa14 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T12:16:35Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-8bb4dd9eda80422a9835884169b8aa142023-11-21T15:50:45ZengMDPI AGMaterials1996-19442021-04-01148199810.3390/ma14081998All-Solid-State Lithium-Ion Batteries with Oxide/Sulfide Composite ElectrolytesYoung Seon Park0Jae Min Lee1Eun Jeong Yi2Ji-Woong Moon3Haejin Hwang4Department of Materials Science & Engineering, Inha University, Incheon 22212, KoreaDepartment of Materials Science & Engineering, Inha University, Incheon 22212, KoreaDepartment of Materials Science & Engineering, Inha University, Incheon 22212, KoreaBattery Materials Research Center, Research Institute of Industrial Science and Technology, Pohang 37673, KoreaDepartment of Materials Science & Engineering, Inha University, Incheon 22212, KoreaLi<sub>6.3</sub>La<sub>3</sub>Zr<sub>1.65</sub>W<sub>0.35</sub>O<sub>12</sub> (LLZO)-Li<sub>6</sub>PS<sub>5</sub>Cl (LPSC) composite electrolytes and all-solid-state cells containing LLZO-LPSC were fabricated by cold pressing at room temperature. The LPSC:LLZO ratio was varied, and the microstructure, ionic conductivity, and electrochemical performance of the corresponding composite electrolytes were investigated; the ionic conductivity of the composite electrolytes was three or four orders of magnitude higher than that of LLZO. The high conductivity of the composite electrolytes was attributed to the enhanced relative density and the rule of mixture for soft LPSC particles with high lithium-ion conductivity (~10<sup>−4</sup> S·cm<sup>−1</sup>). The specific capacities of all-solid-state cells (ASSCs) consisting of a LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> (NCM811) cathode and the composite electrolytes of LLZO:LPSC = 7:3 and 6:4 were 163 and 167 mAh·g<sup>−1</sup>, respectively, at 0.1 C and room temperature. Moreover, the charge–discharge curves of the ASSCs with the composite electrolytes revealed that a good interfacial contact was successfully formed between the NCM811 cathode and the LLZO-LPSC composite electrolyte.https://www.mdpi.com/1996-1944/14/8/1998all-solid-state lithium-ion batteriescomposite solid electrolytessulfidesargyroditegarnetlithium-ion conductivity |
| spellingShingle | Young Seon Park Jae Min Lee Eun Jeong Yi Ji-Woong Moon Haejin Hwang All-Solid-State Lithium-Ion Batteries with Oxide/Sulfide Composite Electrolytes Materials all-solid-state lithium-ion batteries composite solid electrolytes sulfides argyrodite garnet lithium-ion conductivity |
| title | All-Solid-State Lithium-Ion Batteries with Oxide/Sulfide Composite Electrolytes |
| title_full | All-Solid-State Lithium-Ion Batteries with Oxide/Sulfide Composite Electrolytes |
| title_fullStr | All-Solid-State Lithium-Ion Batteries with Oxide/Sulfide Composite Electrolytes |
| title_full_unstemmed | All-Solid-State Lithium-Ion Batteries with Oxide/Sulfide Composite Electrolytes |
| title_short | All-Solid-State Lithium-Ion Batteries with Oxide/Sulfide Composite Electrolytes |
| title_sort | all solid state lithium ion batteries with oxide sulfide composite electrolytes |
| topic | all-solid-state lithium-ion batteries composite solid electrolytes sulfides argyrodite garnet lithium-ion conductivity |
| url | https://www.mdpi.com/1996-1944/14/8/1998 |
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