TY - JOUR
T1 - Poly(diphenanthrenequinone-substituted norbornene) for long life and efficient lithium battery cathodes
AU - Kawai, Takuma
AU - Nakao, Satoshi
AU - Nishide, Hiroyuki
AU - Oyaizu, Kenichi
N1 - Funding Information:
This work was partially supported by Grants-in-Aid for Scientific Research (Nos. 16K14010, 17H03072) from MEXT, Japan. This work was also partially supported by TEPCO Memorial Foundation 2017. T. K. acknowledges the Leading Graduate Program in Science and Engineering, Waseda University from MEXT, Japan.
PY - 2018
Y1 - 2018
N2 - Poly(diphenanthrenequinone-substituted norbornene) (PQN) as a novel class of organic electrode-active material was reported. A Li coin cell composed of the PQN/carbon composite electrode as the cathode exhibited 2.8V and great cycle performance maintaining a capacity higher than 100mAh/g for more than 100 cycles at 60C. Among many types of o-quinonecontaining polymers for Li-ion batteries reported so far, the present research provides the first example of introducing phenanthrenequinone as the pendant group per repeating unit of polymers, which proved to be especially advantageous in terms of robustness and cyclability by virtue of the fused-ring structure to protect the reactive positions of the o-benzoquinone. The functional group tolerance against many types of redox-active groups, which we have established for the initiator and the propagating end of norbornene derivatives, apply for the phenanthrenequinone-substituted monomer, giving rise to a reversible redox activity.
AB - Poly(diphenanthrenequinone-substituted norbornene) (PQN) as a novel class of organic electrode-active material was reported. A Li coin cell composed of the PQN/carbon composite electrode as the cathode exhibited 2.8V and great cycle performance maintaining a capacity higher than 100mAh/g for more than 100 cycles at 60C. Among many types of o-quinonecontaining polymers for Li-ion batteries reported so far, the present research provides the first example of introducing phenanthrenequinone as the pendant group per repeating unit of polymers, which proved to be especially advantageous in terms of robustness and cyclability by virtue of the fused-ring structure to protect the reactive positions of the o-benzoquinone. The functional group tolerance against many types of redox-active groups, which we have established for the initiator and the propagating end of norbornene derivatives, apply for the phenanthrenequinone-substituted monomer, giving rise to a reversible redox activity.
KW - Li-ion battery
KW - Organic electrode material
KW - Quinone
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U2 - 10.1246/bcsj.20170420
DO - 10.1246/bcsj.20170420
M3 - Article
AN - SCOPUS:85047241489
VL - 91
SP - 721
EP - 727
JO - Bulletin of the Chemical Society of Japan
JF - Bulletin of the Chemical Society of Japan
SN - 0009-2673
IS - 5
ER -