TY - JOUR

T1 - The Fast and the Capacious: A [Ni(Salen)]-TEMPO Redox-Conducting Polymer for Organic Batteries

AU - Vereshchagin, Anatolii. A.

AU - Lukyanov, Daniil A.

AU - Kulikov, Ilia R.

AU - Panjwani, Naitik A.

AU - Alekseeva, Elena A.

AU - Behrends, Jan

AU - Levin, Oleg V.

N1 - https://doi.org/10.1002/batt.202000220

PY - 2020/11/27

Y1 - 2020/11/27

N2 - Abstract Redox-active nitroxyl-containing polymers are promising candidates as possible replacements for inorganic based energy-storage materials, due to their high energy density and fast redox kinetics. One challenge towards the implementation of such a system is the insufficient electrical conductivity, impeding the charge collection even with highly conductive additives. Herein, the first implementation of a polymeric bis(salicylideniminato) nickel (NiSalen) conductive backbone as an active charge-collecting wire is reported. NiSalen simultaneously serves as a charge collector for nitroxyl pendants and supports the redox capacity of the material. This novel polymer exhibits a specific capacity of up to 91.5?mAh?g?1, retaining 87?% of its theoretical capacity at 800?C and more than 30?% at as high as 3000 C (66?% capacity retention after 2000 cycles). The properties of the new material upon operation was studied by means of operando electrochemical methods, UV-Vis, and electron paramagnetic resonance spectroscopy.

AB - Abstract Redox-active nitroxyl-containing polymers are promising candidates as possible replacements for inorganic based energy-storage materials, due to their high energy density and fast redox kinetics. One challenge towards the implementation of such a system is the insufficient electrical conductivity, impeding the charge collection even with highly conductive additives. Herein, the first implementation of a polymeric bis(salicylideniminato) nickel (NiSalen) conductive backbone as an active charge-collecting wire is reported. NiSalen simultaneously serves as a charge collector for nitroxyl pendants and supports the redox capacity of the material. This novel polymer exhibits a specific capacity of up to 91.5?mAh?g?1, retaining 87?% of its theoretical capacity at 800?C and more than 30?% at as high as 3000 C (66?% capacity retention after 2000 cycles). The properties of the new material upon operation was studied by means of operando electrochemical methods, UV-Vis, and electron paramagnetic resonance spectroscopy.

KW - polymers

KW - conducting materials

KW - electrochemistry

KW - ultra-fast recharge materials

KW - organic radical battery

KW - polymers

KW - conducting materials

KW - electrochemistry

KW - ultra-fast recharge materials

KW - organic radical battery

KW - ELECTROCHEMICAL ENERGY-STORAGE

KW - CATHODE MATERIAL

KW - RADICAL BATTERY

KW - CHARGE/DISCHARGE PROPERTIES

KW - NICKEL-COMPLEXES

KW - CARBON NANOTUBES

KW - BLOCK-COPOLYMERS

KW - ACTIVE MATERIAL

KW - SCHIFF-BASES

KW - PTMA CATHODE

UR - https://www.mendeley.com/catalogue/e330651a-4d18-3197-9ccd-4c56bc3af9f0/

U2 - 10.1002/batt.202000220

DO - 10.1002/batt.202000220

M3 - статья

VL - 4

SP - 336

EP - 346

JO - Batteries and Supercaps

JF - Batteries and Supercaps

SN - 2566-6223

IS - 2

ER -