This title appears in the Scientific Report :
2020
Please use the identifier:
http://hdl.handle.net/2128/25590 in citations.
Please use the identifier: http://dx.doi.org/10.1016/j.jpowsour.2020.228666 in citations.
Dendrite-tolerant all-solid-state sodium batteries and an important mechanism of metal self-diffusion
Dendrite-tolerant all-solid-state sodium batteries and an important mechanism of metal self-diffusion
Inhibition of dendrite growth in all-solid-state lithium batteries (ASSLBs) has long been a challenge to the field.In the present study, the conditions for dendrite growth for a similar but less mature technology, all-solid-statesodium batteries (ASSNBs), are investigated. By simply sticking sodium...
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Personal Name(s): | Tsai, Chih-Long |
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Lan, Tu / Dellen, Christian / Ling, Yihan / Ma, Qianli (Corresponding author) / Fattakhova-Rohlfing, Dina / Guillon, Olivier / Tietz, Frank | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IEK-1 |
Published in: | Journal of power sources, 476 (2020) S. 228666 - |
Imprint: |
New York, NY [u.a.]
Elsevier
2020
|
DOI: |
10.1016/j.jpowsour.2020.228666 |
Document Type: |
Journal Article |
Research Program: |
Electrochemical Storage |
Link: |
Get full text Published on 2020-08-18. Available in OpenAccess from 2022-08-18. Published on 2020-08-18. Available in OpenAccess from 2022-08-18. Get full text |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1016/j.jpowsour.2020.228666 in citations.
Inhibition of dendrite growth in all-solid-state lithium batteries (ASSLBs) has long been a challenge to the field.In the present study, the conditions for dendrite growth for a similar but less mature technology, all-solid-statesodium batteries (ASSNBs), are investigated. By simply sticking sodium metal to Na3.4Zr2(SiO4)2.4(PO4)0.6(NZSP) ceramic pellets and without applying external pressure during operation, the critical current density ofNa/NZSP/Na symmetric ASSNBs reaches 9 mA cm 2 at 25 ◦C. The cells can be stably operated at an areal capacityof 5 mAh cm 2 (per half cycle, with 1.0 mA cm 2) at 25 ◦C for 300 h in a galvanostatic cycling measurementwithout any dendrite formation. The results outperform the existing ASSLBs and ASSNBs, and also gobeyond satisfying the requirements for practical applications. The influence of the high metal self-diffusioncoefficient on the dendritic plating/stripping is regarded as the most likely reason for the high dendrite toleranceof ASSNBs. A mathematical model based on Fick’s second law was applied as a first approximation toillustrate this influence. Full ASSNBs were fabricated with infiltrated Na3V2(PO4)3 (NVP) as the cathode and canbe stably operated with a capacity of 0.60 mAh cm 2 at high rate of 0.5 mA cm 2 at room temperature. |