Schiff Base as Additive for Preventing Gas Evolution in Li4Ti5O12-Based Lithium-Ion Battery

Schiff Base as Additive for Preventing Gas Evolution in Li4Ti5O12-Based Lithium-Ion Battery

Lithium titanium oxide (Li4Ti5O12)-based electrodes are very promising for long-life cycle batteries. However, the surface reactivity of Li4Ti5O12 in organic electrolytes leading to gas evolution is still a problem that may cause expansion of pouch cells. In this study, we report the use of Schiff b...

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Veröffentlicht in:ACS applied materials & interfaces 2017-11, Vol.9 (47), p.41371-41377
Hauptverfasser: Daigle, Jean-Christophe, Asakawa, Yuichiro, Hovington, Pierre, Zaghib, Karim
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container_issue 47
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container_title ACS applied materials & interfaces
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creator Daigle, Jean-Christophe
Asakawa, Yuichiro
Hovington, Pierre
Zaghib, Karim
description Lithium titanium oxide (Li4Ti5O12)-based electrodes are very promising for long-life cycle batteries. However, the surface reactivity of Li4Ti5O12 in organic electrolytes leading to gas evolution is still a problem that may cause expansion of pouch cells. In this study, we report the use of Schiff base (1,8-diazabicyclo[5.4.0]­undec-7-ene) as an additive that prevents gas evolution during cell aging by a new mechanism involving the solid electrolyte interface on the anode surface. The in situ ring opening polymerization of cyclic carbonates occurs during the first cycles to decrease gas evolution by 9.7 vol % without increasing the internal resistance of the battery.
doi_str_mv 10.1021/acsami.7b15112
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title Schiff Base as Additive for Preventing Gas Evolution in Li4Ti5O12-Based Lithium-Ion Battery
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