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Metal-ion batteries meet supercapacitors: high capacity and high rate capability rechargeable batteries with organic cathodes and a Na/K alloy anode.
Chem Commun (Camb) 2019; 55(78):11758-11761CC

Abstract

In this study, a dendrite-free liquid sodium-potassium alloy (NaK) anode with high capacity, a low reduction potential and fast kinetics was paired with two organic polymer cathodes, poly(N-phenyl-5,10-dihydrophenazine) (P1) and poly(hexaazatrinaphthylene) (P2), in metal-ion batteries. A high energy density of 631 W h kg-1 was achieved for one of the polymers (P1) at a discharge current density of 0.2 A g-1 (∼1C rate), while a still impressive specific energy of 443 W h kg-1 was achieved at 20 A g-1 (∼160C rate), which is an unprecedented value for post-lithium battery cathodes. Outstanding power densities of >105 W kg-1 were demonstrated, thus boosting the rate capability of metal-ion batteries to the level of high-power supercapacitors. Moreover, excellent cyclability was demonstrated, with only 11% capacity loss after 10 000 charge/discharge cycles at 10 A g-1 for cathodes based on P2.

Authors+Show Affiliations

Center for Energy Science and Technology, Skolkovo Institute of Science and Technology, Nobel Str. 3, Moscow 143026, Russia. roman.kapaev@skoltech.ru.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31513192

Citation

Kapaev, Roman R., et al. "Metal-ion Batteries Meet Supercapacitors: High Capacity and High Rate Capability Rechargeable Batteries With Organic Cathodes and a Na/K Alloy Anode." Chemical Communications (Cambridge, England), vol. 55, no. 78, 2019, pp. 11758-11761.
Kapaev RR, Obrezkov FA, Stevenson KJ, et al. Metal-ion batteries meet supercapacitors: high capacity and high rate capability rechargeable batteries with organic cathodes and a Na/K alloy anode. Chem Commun (Camb). 2019;55(78):11758-11761.
Kapaev, R. R., Obrezkov, F. A., Stevenson, K. J., & Troshin, P. A. (2019). Metal-ion batteries meet supercapacitors: high capacity and high rate capability rechargeable batteries with organic cathodes and a Na/K alloy anode. Chemical Communications (Cambridge, England), 55(78), pp. 11758-11761. doi:10.1039/c9cc05745e.
Kapaev RR, et al. Metal-ion Batteries Meet Supercapacitors: High Capacity and High Rate Capability Rechargeable Batteries With Organic Cathodes and a Na/K Alloy Anode. Chem Commun (Camb). 2019 Sep 26;55(78):11758-11761. PubMed PMID: 31513192.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Metal-ion batteries meet supercapacitors: high capacity and high rate capability rechargeable batteries with organic cathodes and a Na/K alloy anode. AU - Kapaev,Roman R, AU - Obrezkov,Filipp A, AU - Stevenson,Keith J, AU - Troshin,Pavel A, PY - 2019/9/13/pubmed PY - 2019/9/13/medline PY - 2019/9/13/entrez SP - 11758 EP - 11761 JF - Chemical communications (Cambridge, England) JO - Chem. Commun. (Camb.) VL - 55 IS - 78 N2 - In this study, a dendrite-free liquid sodium-potassium alloy (NaK) anode with high capacity, a low reduction potential and fast kinetics was paired with two organic polymer cathodes, poly(N-phenyl-5,10-dihydrophenazine) (P1) and poly(hexaazatrinaphthylene) (P2), in metal-ion batteries. A high energy density of 631 W h kg-1 was achieved for one of the polymers (P1) at a discharge current density of 0.2 A g-1 (∼1C rate), while a still impressive specific energy of 443 W h kg-1 was achieved at 20 A g-1 (∼160C rate), which is an unprecedented value for post-lithium battery cathodes. Outstanding power densities of >105 W kg-1 were demonstrated, thus boosting the rate capability of metal-ion batteries to the level of high-power supercapacitors. Moreover, excellent cyclability was demonstrated, with only 11% capacity loss after 10 000 charge/discharge cycles at 10 A g-1 for cathodes based on P2. SN - 1364-548X UR - https://www.unboundmedicine.com/medline/citation/31513192/Metal-ion_batteries_meet_supercapacitors:_high_capacity_and_high_rate_capability_rechargeable_batteries_with_organic_cathodes_and_a_Na/K_alloy_anode L2 - https://doi.org/10.1039/c9cc05745e DB - PRIME DP - Unbound Medicine ER -