Critical stripping current leads to dendrite formation on plating in lithium anode solid electrolyte cells
A critical current density on stripping is identified that results in dendrite formation on plating and cell failure. When the stripping current density removes Li from the interface faster than it can be replenished, voids form in the Li at the interface and accumulate on cycling, increasing the lo...
| Prif Awduron: | , , , , , , |
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| Fformat: | Journal article |
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Springer Nature
2019
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| _version_ | 1826295452898689024 |
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| author | Kasemchainan, J Zekoll, S Spencer Jolly, D Ning, Z Hartley, G Marrow, J Bruce, P |
| author_facet | Kasemchainan, J Zekoll, S Spencer Jolly, D Ning, Z Hartley, G Marrow, J Bruce, P |
| author_sort | Kasemchainan, J |
| collection | OXFORD |
| description | A critical current density on stripping is identified that results in dendrite formation on plating and cell failure. When the stripping current density removes Li from the interface faster than it can be replenished, voids form in the Li at the interface and accumulate on cycling, increasing the local current density at the interface and ultimately leading to dendrite formation on plating, short circuit and cell death. This occurs even when the overall current density is considerably below the threshold for dendrite formation on plating. For the Li/Li6PS5Cl/Li cell, this is 0.2 and 1.0 mA cm−2 at 3 and 7 MPa pressure, respectively, compared with a critical current for plating of 2.0 mA cm−2 at both 3 and 7 MPa. The pressure dependence on stripping indicates that creep rather than Li diffusion is the dominant mechanism transporting Li to the interface. The critical stripping current is a major factor limiting the power density of Li anode solid-state cells. Considerable pressure may be required to achieve even modest power densities in solid-state cells. |
| first_indexed | 2024-03-07T04:01:16Z |
| format | Journal article |
| id | oxford-uuid:c4a7133d-d0bf-4d49-9b51-cbbc2c37f41d |
| institution | University of Oxford |
| last_indexed | 2024-03-07T04:01:16Z |
| publishDate | 2019 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | oxford-uuid:c4a7133d-d0bf-4d49-9b51-cbbc2c37f41d2022-03-27T06:25:10ZCritical stripping current leads to dendrite formation on plating in lithium anode solid electrolyte cells Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c4a7133d-d0bf-4d49-9b51-cbbc2c37f41dSymplectic Elements at OxfordSpringer Nature2019Kasemchainan, JZekoll, SSpencer Jolly, DNing, ZHartley, GMarrow, JBruce, PA critical current density on stripping is identified that results in dendrite formation on plating and cell failure. When the stripping current density removes Li from the interface faster than it can be replenished, voids form in the Li at the interface and accumulate on cycling, increasing the local current density at the interface and ultimately leading to dendrite formation on plating, short circuit and cell death. This occurs even when the overall current density is considerably below the threshold for dendrite formation on plating. For the Li/Li6PS5Cl/Li cell, this is 0.2 and 1.0 mA cm−2 at 3 and 7 MPa pressure, respectively, compared with a critical current for plating of 2.0 mA cm−2 at both 3 and 7 MPa. The pressure dependence on stripping indicates that creep rather than Li diffusion is the dominant mechanism transporting Li to the interface. The critical stripping current is a major factor limiting the power density of Li anode solid-state cells. Considerable pressure may be required to achieve even modest power densities in solid-state cells. |
| spellingShingle | Kasemchainan, J Zekoll, S Spencer Jolly, D Ning, Z Hartley, G Marrow, J Bruce, P Critical stripping current leads to dendrite formation on plating in lithium anode solid electrolyte cells |
| title | Critical stripping current leads to dendrite formation on plating in lithium anode solid electrolyte cells |
| title_full | Critical stripping current leads to dendrite formation on plating in lithium anode solid electrolyte cells |
| title_fullStr | Critical stripping current leads to dendrite formation on plating in lithium anode solid electrolyte cells |
| title_full_unstemmed | Critical stripping current leads to dendrite formation on plating in lithium anode solid electrolyte cells |
| title_short | Critical stripping current leads to dendrite formation on plating in lithium anode solid electrolyte cells |
| title_sort | critical stripping current leads to dendrite formation on plating in lithium anode solid electrolyte cells |
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