Selenium-Infused Ordered Mesoporous Carbon for Room Temperature All-Solid-State Lithium-Selenium Batteries with Ultrastable Cyclability.
Selenium-Infused Ordered Mesoporous Carbon for Room Temperature All-Solid-State Lithium-Selenium Batteries with Ultrastable Cyclability.
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DOI：
10.1021/acsami.0c01996
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发表时间：
2020-03
影响因子：
9.5
通讯作者：
Qiang Zhang;Liangting Cai;Gaozhan Liu;Qihua Li;Miao Jiang;X. Yao
中科院分区：
文献类型：
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作者：
Qiang Zhang;Liangting Cai;Gaozhan Liu;Qihua Li;Miao Jiang;X. Yao
Selenium with similar reaction mechanism with sulfur and much high electronic conductivity is considered to be a promising cathode for all-solid-state rechargeable batteries. Herein, selenium-incorporated ordered mesoporous carbon (Se/CMK-3) are successfully prepared by a melt-diffusion method from a ball-milled mixture of Se and CMK-3 (Se-CMK-3). Furthermore, their electrochemical performances are evaluated in all-solid-state lithium-selenium batteries at room temperature. Typically, Li/75%Li2S-24%P2S5-1%P2O5/Li10GeP2S12/Se/CMK-3 all-solid-state lithium-selenium batteries exhibit high reversible capacity of 488.7 mAh g-1 at 0.05C after 100 cycles. Even being cycled at 0.5C, it still maintains discharge capacity of 268.7 mAh g-1 after 200 cycles. The excellent electrochemical performances could be attributed to the enhanced electronic/ionic conductivities and structure integrity with the addition of flexible CMK-3 matrix.
