High energy density single-crystal NMC/Li6PS5Cl cathodes for all-solid-state lithium-metal batteries

To match the high capacity of metallic anodes, all-solid-state batteries require high energy density, long-lasting composite cathodes such as Ni-Mn-Co (NMC)-based lithium oxides mixed with a solid-state electrolyte (SSE). However in practice, cathode capacity typically fades due to NMC cracking and...

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मुख्य लेखकों: Doerrer, C, Capone, I, Narayanan, S, Liu, J, Grovenor, CRM, Pasta, M, Grant, PS
स्वरूप: Journal article
भाषा:English
प्रकाशित: American Chemical Society 2021
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author Doerrer, C
Capone, I
Narayanan, S
Liu, J
Grovenor, CRM
Pasta, M
Grant, PS
author_facet Doerrer, C
Capone, I
Narayanan, S
Liu, J
Grovenor, CRM
Pasta, M
Grant, PS
author_sort Doerrer, C
collection OXFORD
description To match the high capacity of metallic anodes, all-solid-state batteries require high energy density, long-lasting composite cathodes such as Ni-Mn-Co (NMC)-based lithium oxides mixed with a solid-state electrolyte (SSE). However in practice, cathode capacity typically fades due to NMC cracking and increasing NMC/SSE interface debonding because of NMC pulverization, which is only partially mitigated by the application of a high cell pressure during cycling. Using smart processing protocols, we report a single-crystal particulate LiNi<sub>0.83</sub>Mn<sub>0.06</sub>Co<sub>0.11</sub>O<sub>2</sub> and Li<sub>6</sub>PS<sub>5</sub>Cl SSE composite cathode with outstanding discharge capacity of 210 mA h g<sup>-1</sup> at 30 °C. A first cycle coulombic efficiency of >85, and >99% thereafter, was achieved despite a 5.5% volume change during cycling. A near-practical discharge capacity at a high areal capacity of 8.7 mA h cm<sup>-2</sup> was obtained using an asymmetric anode/cathode cycling pressure of only 2.5 MPa/0.2 MPa.
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spelling oxford-uuid:e7bd4be7-c3fb-45df-a469-11672598a4162022-03-27T10:41:16ZHigh energy density single-crystal NMC/Li6PS5Cl cathodes for all-solid-state lithium-metal batteriesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e7bd4be7-c3fb-45df-a469-11672598a416EnglishSymplectic ElementsAmerican Chemical Society2021Doerrer, CCapone, INarayanan, SLiu, JGrovenor, CRMPasta, MGrant, PSTo match the high capacity of metallic anodes, all-solid-state batteries require high energy density, long-lasting composite cathodes such as Ni-Mn-Co (NMC)-based lithium oxides mixed with a solid-state electrolyte (SSE). However in practice, cathode capacity typically fades due to NMC cracking and increasing NMC/SSE interface debonding because of NMC pulverization, which is only partially mitigated by the application of a high cell pressure during cycling. Using smart processing protocols, we report a single-crystal particulate LiNi<sub>0.83</sub>Mn<sub>0.06</sub>Co<sub>0.11</sub>O<sub>2</sub> and Li<sub>6</sub>PS<sub>5</sub>Cl SSE composite cathode with outstanding discharge capacity of 210 mA h g<sup>-1</sup> at 30 °C. A first cycle coulombic efficiency of >85, and >99% thereafter, was achieved despite a 5.5% volume change during cycling. A near-practical discharge capacity at a high areal capacity of 8.7 mA h cm<sup>-2</sup> was obtained using an asymmetric anode/cathode cycling pressure of only 2.5 MPa/0.2 MPa.
spellingShingle Doerrer, C
Capone, I
Narayanan, S
Liu, J
Grovenor, CRM
Pasta, M
Grant, PS
High energy density single-crystal NMC/Li6PS5Cl cathodes for all-solid-state lithium-metal batteries
title High energy density single-crystal NMC/Li6PS5Cl cathodes for all-solid-state lithium-metal batteries
title_full High energy density single-crystal NMC/Li6PS5Cl cathodes for all-solid-state lithium-metal batteries
title_fullStr High energy density single-crystal NMC/Li6PS5Cl cathodes for all-solid-state lithium-metal batteries
title_full_unstemmed High energy density single-crystal NMC/Li6PS5Cl cathodes for all-solid-state lithium-metal batteries
title_short High energy density single-crystal NMC/Li6PS5Cl cathodes for all-solid-state lithium-metal batteries
title_sort high energy density single crystal nmc li6ps5cl cathodes for all solid state lithium metal batteries
work_keys_str_mv AT doerrerc highenergydensitysinglecrystalnmcli6ps5clcathodesforallsolidstatelithiummetalbatteries
AT caponei highenergydensitysinglecrystalnmcli6ps5clcathodesforallsolidstatelithiummetalbatteries
AT narayanans highenergydensitysinglecrystalnmcli6ps5clcathodesforallsolidstatelithiummetalbatteries
AT liuj highenergydensitysinglecrystalnmcli6ps5clcathodesforallsolidstatelithiummetalbatteries
AT grovenorcrm highenergydensitysinglecrystalnmcli6ps5clcathodesforallsolidstatelithiummetalbatteries
AT pastam highenergydensitysinglecrystalnmcli6ps5clcathodesforallsolidstatelithiummetalbatteries
AT grantps highenergydensitysinglecrystalnmcli6ps5clcathodesforallsolidstatelithiummetalbatteries