Achieving ultrahigh-rate planar and dendrite-free zinc electroplating for aqueous zinc battery anodes
Despite being one of the most promising candidates for grid-level energy storage, practical aqueous zinc batteries are limited by dendrite formation, which leads to significantly compromised safety and cycling performance. In this study, by using single-crystal Zn-metal anodes, reversible electrodep...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
Wiley
2022
|
| _version_ | 1826308551471005696 |
|---|---|
| author | Pu, SD Gong, C Tang, YT Ning, Z Liu, J Zhang, S Yuan, Y Melvin, D Yang, S Pi, L Marie, J-J Hu, B Jenkins, M Li, Z Liu, B Tsang, SCE Marrow, TJ Reed, RC Gao, X Bruce, PG Robertson, AW |
| author_facet | Pu, SD Gong, C Tang, YT Ning, Z Liu, J Zhang, S Yuan, Y Melvin, D Yang, S Pi, L Marie, J-J Hu, B Jenkins, M Li, Z Liu, B Tsang, SCE Marrow, TJ Reed, RC Gao, X Bruce, PG Robertson, AW |
| author_sort | Pu, SD |
| collection | OXFORD |
| description | Despite being one of the most promising candidates for grid-level energy storage, practical aqueous zinc batteries are limited by dendrite formation, which leads to significantly compromised safety and cycling performance. In this study, by using single-crystal Zn-metal anodes, reversible electrodeposition of planar Zn with a high capacity of 8 mAh cm−2 can be achieved at an unprecedentedly high current density of 200 mA cm−2. This dendrite-free electrode is well maintained even after prolonged cycling (>1200 cycles at 50 mA cm−2). Such excellent electrochemical performance is due to single-crystal Zn suppressing the major sources of defect generation during electroplating and heavily favoring planar deposition morphologies. As so few defect sites form, including those that would normally be found along grain boundaries or to accommodate lattice mismatch, there is little opportunity for dendritic structures to nucleate, even under extreme plating rates. This scarcity of defects is in part due to perfect atomic-stitching between merging Zn islands, ensuring no defective shallow-angle grain boundaries are formed and thus removing a significant source of non-planar Zn nucleation. It is demonstrated that an ideal high-rate Zn anode should offer perfect lattice matching as this facilitates planar epitaxial Zn growth and minimizes the formation of any defective regions.
|
| first_indexed | 2024-03-07T07:21:10Z |
| format | Journal article |
| id | oxford-uuid:5193a236-925c-479d-8ac4-ece6d5cd1c01 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:21:10Z |
| publishDate | 2022 |
| publisher | Wiley |
| record_format | dspace |
| spelling | oxford-uuid:5193a236-925c-479d-8ac4-ece6d5cd1c012022-10-12T08:23:08ZAchieving ultrahigh-rate planar and dendrite-free zinc electroplating for aqueous zinc battery anodesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5193a236-925c-479d-8ac4-ece6d5cd1c01EnglishSymplectic ElementsWiley2022Pu, SDGong, CTang, YTNing, ZLiu, JZhang, SYuan, YMelvin, DYang, SPi, LMarie, J-JHu, BJenkins, MLi, ZLiu, BTsang, SCEMarrow, TJReed, RCGao, XBruce, PGRobertson, AWDespite being one of the most promising candidates for grid-level energy storage, practical aqueous zinc batteries are limited by dendrite formation, which leads to significantly compromised safety and cycling performance. In this study, by using single-crystal Zn-metal anodes, reversible electrodeposition of planar Zn with a high capacity of 8 mAh cm−2 can be achieved at an unprecedentedly high current density of 200 mA cm−2. This dendrite-free electrode is well maintained even after prolonged cycling (>1200 cycles at 50 mA cm−2). Such excellent electrochemical performance is due to single-crystal Zn suppressing the major sources of defect generation during electroplating and heavily favoring planar deposition morphologies. As so few defect sites form, including those that would normally be found along grain boundaries or to accommodate lattice mismatch, there is little opportunity for dendritic structures to nucleate, even under extreme plating rates. This scarcity of defects is in part due to perfect atomic-stitching between merging Zn islands, ensuring no defective shallow-angle grain boundaries are formed and thus removing a significant source of non-planar Zn nucleation. It is demonstrated that an ideal high-rate Zn anode should offer perfect lattice matching as this facilitates planar epitaxial Zn growth and minimizes the formation of any defective regions. |
| spellingShingle | Pu, SD Gong, C Tang, YT Ning, Z Liu, J Zhang, S Yuan, Y Melvin, D Yang, S Pi, L Marie, J-J Hu, B Jenkins, M Li, Z Liu, B Tsang, SCE Marrow, TJ Reed, RC Gao, X Bruce, PG Robertson, AW Achieving ultrahigh-rate planar and dendrite-free zinc electroplating for aqueous zinc battery anodes |
| title | Achieving ultrahigh-rate planar and dendrite-free zinc electroplating for aqueous zinc battery anodes |
| title_full | Achieving ultrahigh-rate planar and dendrite-free zinc electroplating for aqueous zinc battery anodes |
| title_fullStr | Achieving ultrahigh-rate planar and dendrite-free zinc electroplating for aqueous zinc battery anodes |
| title_full_unstemmed | Achieving ultrahigh-rate planar and dendrite-free zinc electroplating for aqueous zinc battery anodes |
| title_short | Achieving ultrahigh-rate planar and dendrite-free zinc electroplating for aqueous zinc battery anodes |
| title_sort | achieving ultrahigh rate planar and dendrite free zinc electroplating for aqueous zinc battery anodes |
| work_keys_str_mv | AT pusd achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT gongc achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT tangyt achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT ningz achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT liuj achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT zhangs achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT yuany achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT melvind achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT yangs achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT pil achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT mariejj achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT hub achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT jenkinsm achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT liz achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT liub achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT tsangsce achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT marrowtj achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT reedrc achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT gaox achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT brucepg achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes AT robertsonaw achievingultrahighrateplanaranddendritefreezincelectroplatingforaqueouszincbatteryanodes |