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DOI | 10.1039/d0ee03967e |
High transference number enabled by sulfated zirconia superacid for lithium metal batteries with carbonate electrolytes | |
Woo S.-G.; Hwang E.-K.; Kang H.-K.; Lee H.; Lee J.-N.; Kim H.-S.; Jeong G.; Yoo D.-J.; Lee J.; Kim S.; Yu J.-S.; Choi J.W. | |
发表日期 | 2021 |
ISSN | 17545692 |
起始页码 | 1420 |
结束页码 | 1428 |
卷号 | 14期号:3 |
英文摘要 | The prospect of increasing the energy density has promoted research on lithium metal batteries. Yet, avoiding the uncontrolled growth of lithium dendrites and the resulting interfacial instability to ensure the practical viability of the given battery technology remains a considerable challenge. Here, we report coating the separator with sulfated zirconia superacid to achieve a high lithium ion transference number of 0.85 and excellent cycle life when a full-cell paired with a LiNi0.82Co0.07Mn0.11O2 cathode was tested in a carbonate electrolyte under practical operating conditions. The exceptionally high transference number is attributed to strengthened binding of the PF6- anion of the lithium salt with the superacid. Furthermore, the presence of the superacid induces a mechanically stable solid-electrolyte-interphase (SEI) layer rich in LixPOyFz. This study demonstrates the beneficial effect of the superacid on emerging post-lithium-ion batteries by immobilizing the anion of the salt as well as modifying the SEI composition. © 2021 The Royal Society of Chemistry. |
英文关键词 | Acids; Cobalt compounds; Ions; Lithium-ion batteries; Manganese compounds; Nickel compounds; Solid electrolytes; Zirconia; Battery technology; Carbonate electrolytes; Interfacial instability; Lithium ion transference number; Mechanically stable; Practical operating conditions; Solid electrolyte interphase layer (SEI); Transference number; Lithium compounds; carbonate; electrolyte; lithium; zirconium |
语种 | 英语 |
来源期刊 | Energy & Environmental Science |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/190749 |
作者单位 | Advanced Batteries Research Center, Korea Electronics Technology Institute, 25 Saenari-ro, Bundang-gu, Seongnam, Gyeonggi, 13509, South Korea; School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea; Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea |
推荐引用方式 GB/T 7714 | Woo S.-G.,Hwang E.-K.,Kang H.-K.,et al. High transference number enabled by sulfated zirconia superacid for lithium metal batteries with carbonate electrolytes[J],2021,14(3). |
APA | Woo S.-G..,Hwang E.-K..,Kang H.-K..,Lee H..,Lee J.-N..,...&Choi J.W..(2021).High transference number enabled by sulfated zirconia superacid for lithium metal batteries with carbonate electrolytes.Energy & Environmental Science,14(3). |
MLA | Woo S.-G.,et al."High transference number enabled by sulfated zirconia superacid for lithium metal batteries with carbonate electrolytes".Energy & Environmental Science 14.3(2021). |
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