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https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/127792
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| 題名: | Prolonged lifespan of initial-anode-free lithium-metal battery by pre-lithiation in Li-rich Li2Ni0.5Mn1.5O4 spinel cathode |
| 作者: | Chen, Leiyu;Chiang, Chao-Lung;Wu, Xiaohong;Tang, Yonglin;Zeng, Guifan;Zhou, Shiyuan;Zhang, Baodan;Zhang, Haitang;Yan, Yawen;Liu, Tingting;Liao, Hong-Gang;Kuai, Xiaoxiao;Lin, Yan-Gu;Qiao, Yu;Sun, Shi-Gang |
| 日期: | 2023/01/23 |
| 上傳時間: | 2025-09-17 12:06:48 (UTC+8) |
| 出版者: | Royal Society of Chemistry |
| 摘要: | Anode-free lithium metal batteries (AF-LMBs) can deliver the maximum energy density. However, achieving AF-LMBs with a long lifespan remains challenging because of the poor reversibility of Li+ plating/stripping on the anode. Here, coupled with a fluorine-containing electrolyte, we introduce a cathode pre-lithiation strategy to extend the lifespan of AF-LMBs. The AF-LMB is constructed with Li-rich Li2Ni0.5Mn1.5O4 cathodes as a Li-ion extender; the Li2Ni0.5Mn1.5O4 can deliver a large amount of Li+ in the initial charging process to offset the continuous Li+ consumption, which benefits the cycling performance without sacrificing energy density. Moreover, the cathode pre-lithiation design has been practically and precisely regulated using engineering methods (Li-metal contact and pre-lithiation Li-biphenyl immersion). Benefiting from the highly reversible Li metal on the Cu anode and Li2Ni0.5Mn1.5O4 cathode, the further fabricated anode-free pouch cells achieve 350 W h kg−1 energy density and 97% capacity retention after 50 cycles. |
| 關聯: | Chemical Science 14(8), 2183-2191 |
| DOI: | 10.1039/D2SC06772B |
| 顯示於類別: | [化學工程與材料工程學系暨研究所] 期刊論文
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