Molecular Engineered Safer Organic Battery through the Incorporation of Flame Retarding Organophosphonate Moiety
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- Molecular Engineered Safer Organic Battery through the Incorporation of Flame Retarding Organophosphonate Moiety
- Lee, Hyun Ho; Nam, Dongsik; Kim, Choon-Ki; Kim, Koeun; Lee, Yongwon; Ahn, Young Jun; Lee, Jae Bin; Kwak, Ja Hun; Choe, Wonyoung; Choi, Nam-Soon; Hong, Sung You
- Issue Date
- AMER CHEMICAL SOC
- ACS APPLIED MATERIALS & INTERFACES, v.10, no.12, pp.10096 - 10101
- Here, we report the first electrochemical assessment of organophosphonate-based compound as a safe electrode material for lithium-ion batteries, which highlights the reversible redox activity and inherent flame retarding property. Dinickel 1,4-benzenediphosphonate delivers a high reversible capacity of 585 mA h g-1 with stable cycle performance. It expands the scope of organic batteries, which have been mainly dominated by the organic carbonyl family to date. The redox chemistry is elucidated by X-ray absorption spectroscopy and solid-state 31P NMR investigations. Differential scanning calorimetry profiles of the lithiated electrode material exhibit suppressed heat release, delayed onset temperature, and endothermic behavior in the elevated temperature zone.
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