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Asymmetric K/Li-Ion Battery Based on Intercalation Selectivity AITranslate

Jiaxin Zheng; Wenjun Deng; Zongxiang Hu; Zengqing Zhuo; Fusheng Liu; Haibiao Chen; Yuan Lin; Wanli Yang; Khalil Amine; Rui Li; Jun Lu; Feng Pan;
Peking University; Peking University; Peking University; Peking University; Lawrence Berkeley National Laboratory; Peking University; Peking University; Shenzhen University and Shenzhen Key Laboratory of Special Functional Materials; Argonne National Laboratory; Peking University; Argonne National Laboratory; Peking University
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Publisher: ACS
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Abstract AITranslate

Using ab initio calculations combined with experimental confirmation, we design an asymmetric intercalation battery using K2NiFeII(CN)6 as the cathode, commercial graphite as the anode, and an organic electrolyte containing mixed lithium and potassium salts. It works by reversible K-ion intercalation at the cathode side and reversible Li-ion intercalation at the anode side simultaneously. The π-electron coordination environment in K2NiFeII(CN)6 ensures the preferred reversible intercalation of the K-ion, and the small ionic radius ensures the preferred reversible intercalation of the Li-ion in graphite. It also shows a high working voltage (∼3.6 V) and an ultralong cycling life with no capacity fading even after 5000 cycles.

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DOI：https://doi.org/10.1021/acsenergylett.7b01021

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Citation Information:

Using ab initio calculations combined with experimental confirmation, we design an asymmetric intercalation battery using K2NiFeII(CN)6 as the cathode, commercial graphite as the anode, and an organic electrolyte containing mixed lithium and potassium salts. It works by reversible K-ion intercalation at the cathode side and reversible Li-ion intercalation at the anode side simultaneously. The π-electron coordination environment in K2NiFeII(CN)6 ensures the preferred reversible intercalation of the K-ion, and the small ionic radius ensures the preferred reversible intercalation of the Li-ion in graphite. It also shows a high working voltage (∼3.6 V) and an ultralong cycling life with no capacity fading even after 5000 cycles.

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GB/T 7714-2015 [1] Jiaxin Zheng, Wenjun Deng, Zongxiang Hu, et al. ACS Energy Letters, 2018(3). DOI:10.1021/acsenergylett.7b01021.
MLA [1] Jiaxin Zheng, et al., ACS Energy Letters, no. 3, 2018, https://doi.org/10.1021/acsenergylett.7b01021.
APA [1] Jiaxin Zheng, Wenjun Deng, Zongxiang Hu, Zengqing Zhuo, Fusheng Liu, Haibiao Chen, Yuan Lin, Wanli Yang, Khalil Amine, Rui Li, Jun Lu, & Feng Pan. (2018). ACS Energy Letters(3). https://doi.org/10.1021/acsenergylett.7b01021
IEEE [1] Jiaxin Zheng, Wenjun Deng, Zongxiang Hu, Zengqing Zhuo, Fusheng Liu, Haibiao Chen, Yuan Lin, Wanli Yang, Khalil Amine, Rui Li, Jun Lu, and Feng Pan, ACS Energy Letters, no. 3, 2018, doi: 10.1021/acsenergylett.7b01021.