当前位置：
X-MOL 学术
›
Adv. Energy Mater.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Cooperative Effect of Redox Mediator and Ion Selective Membrane to Inhibit the Shuttle Effect for Li–O2 Battery with Large Cyclic Capacity
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2023-11-21 , DOI: 10.1002/aenm.202303192 Danzheng Zhou 1 , Jian Zhang 1 , Tengfei Bian 1 , Yuanfang Tao 1 , Xiao Liu 2 , Qing Han 1 , Zewen Liu 1 , Silei Chen 1 , Jin Wang 3 , Peng Zhang 4 , Yong Zhao 1
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2023-11-21 , DOI: 10.1002/aenm.202303192 Danzheng Zhou 1 , Jian Zhang 1 , Tengfei Bian 1 , Yuanfang Tao 1 , Xiao Liu 2 , Qing Han 1 , Zewen Liu 1 , Silei Chen 1 , Jin Wang 3 , Peng Zhang 4 , Yong Zhao 1
Affiliation
|
Aprotic lithium-oxygen (Li–O2) batteries hardly cycle at the condition of high area capacity for realizing their high energy density, because the unconducive lithium peroxide (Li2O2) discharge product limits the electron transfer between electrode and O2/Li2O2. Here, it is demonstrated that one of redox mediator (RM), triethylene glycol bis-2,2,6,6-tetramethylpiperidin-1-oxyl radical (D-TEMPO), can be effectively used to promote the electron transfer between electrode and Li2O2, which the shuttle effect of RM can be cooperatively inhibited by regulating the size of RM and the thickness of ion-selective membrane. As a result, the Li–O2 battery coupled with double cathodes, D-TEMPO, and ion-selective membrane can be stably operated for 46 days at a capacity of 5 mAh cm−2. The concept in this work provides the cooperative design of a stable solution-mediated pathway for high-capacity Li–O2 battery with long cycle stability.
中文翻译：
氧化还原介体与离子选择膜协同抑制大循环容量锂氧电池的穿梭效应
非质子锂氧（Li–O 2）电池很难在高面积容量条件下循环以实现其高能量密度，因为不导电的过氧化锂（Li 2 O 2 ）放电产物限制了电极和O 2 /之间的电子转移。Li 2 O 2。在这里，证明了氧化还原介体（RM）之一，三甘醇双-2,2,6,6-四甲基哌啶-1-氧基自由基（D-TEMPO）可以有效地促进电极和电极之间的电子转移。 Li 2 O 2，通过调节RM的尺寸和离子选择性膜的厚度可以协同抑制RM的穿梭效应。结果，与双正极、D-TEMPO和离子选择膜耦合的Li-O 2电池可以在5mAh cm -2的容量下稳定运行46天。这项工作的概念为具有长循环稳定性的高容量Li-O 2电池提供了稳定溶液介导途径的协同设计。
更新日期：2023-11-21
中文翻译：
氧化还原介体与离子选择膜协同抑制大循环容量锂氧电池的穿梭效应
非质子锂氧（Li–O 2）电池很难在高面积容量条件下循环以实现其高能量密度，因为不导电的过氧化锂（Li 2 O 2 ）放电产物限制了电极和O 2 /之间的电子转移。Li 2 O 2。在这里，证明了氧化还原介体（RM）之一，三甘醇双-2,2,6,6-四甲基哌啶-1-氧基自由基（D-TEMPO）可以有效地促进电极和电极之间的电子转移。 Li 2 O 2，通过调节RM的尺寸和离子选择性膜的厚度可以协同抑制RM的穿梭效应。结果，与双正极、D-TEMPO和离子选择膜耦合的Li-O 2电池可以在5mAh cm -2的容量下稳定运行46天。这项工作的概念为具有长循环稳定性的高容量Li-O 2电池提供了稳定溶液介导途径的协同设计。
京公网安备 11010802027423号