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A Double-Functional Additive Containing Nucleophilic Groups for High-Performance Zn-Ion Batteries
ACS Nano ( IF 15.8 ) Pub Date : 2023-01-03 , DOI: 10.1021/acsnano.2c11357 Jiandong Wan 1 , Rui Wang 1 , Zixiang Liu 1 , Longhai Zhang 1 , Fei Liang 1 , Tengfei Zhou 1 , Shilin Zhang 2 , Lin Zhang 3 , Qiquan Lu 1 , Chaofeng Zhang 1 , Zaiping Guo 2
ACS Nano ( IF 15.8 ) Pub Date : 2023-01-03 , DOI: 10.1021/acsnano.2c11357 Jiandong Wan 1 , Rui Wang 1 , Zixiang Liu 1 , Longhai Zhang 1 , Fei Liang 1 , Tengfei Zhou 1 , Shilin Zhang 2 , Lin Zhang 3 , Qiquan Lu 1 , Chaofeng Zhang 1 , Zaiping Guo 2
Affiliation
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Aqueous zinc-ion batteries (AZIBs) have attracted attention for their low cost and environmental friendliness. Unfortunately, commercialization has been hampered by several problems with dendrite growth and side reactions. Herein, we select sodium tartrate (TA-Na) as a dual-functional electrolyte additive to enhance the reversibility of AZIBs. The tartrate anions are preferentially adsorbed on the Zn surface, and then the highly nucleophilic carboxylate will coordinate with Zn2+ to promote the desolvation of [Zn(H2O)6]2+, leading to uniform Zn deposition on the beneficial (002) plane and inhibiting side reactions and dendrite growth. Consequently, the Zn|Zn cells show a long-term cycling stability of over 1500 cycles at 0.5 mA cm–2. Moreover, the Ta-Na additive improves the performance of Zn||MnO2 full cells, evidenced by a cycling life of 1000 cycles at 1 A g–1 under practical conditions with a limited Zn anode (negative/positive capacity ratio of 10/1) and controlled electrolyte (electrolyte/capacity ratio of 20 μL mAh–1).
中文翻译：
一种用于高性能锌离子电池的含亲核基团的双功能添加剂
水系锌离子电池（AZIB）因其低成本和环境友好而受到关注。不幸的是，商业化受到枝晶生长和副反应等几个问题的阻碍。在此，我们选择酒石酸钠（TA-Na）作为双功能电解质添加剂来增强AZIBs的可逆性。酒石酸阴离子优先吸附在Zn表面，然后高度亲核的羧酸根与Zn 2+配位，促进[Zn(H 2 O) 6 ] 2+的去溶剂化，导致Zn均匀沉积在有益的(002 ）平面并抑制副反应和枝晶生长。因此，Zn|Zn 电池在 0.5 mA cm –2下表现出超过 1500 次循环的长期循环稳定性。此外，Ta-Na添加剂改善了Zn||MnO 2全电池的性能，在有限Zn阳极的实际条件下（负/正容量比为10/10）在1 A g –1下的1000次循环寿命证明了这一点。 1) 和受控电解质（电解质/容量比为 20 μL mAh –1 ）。
更新日期：2023-01-03
中文翻译：
一种用于高性能锌离子电池的含亲核基团的双功能添加剂
水系锌离子电池（AZIB）因其低成本和环境友好而受到关注。不幸的是，商业化受到枝晶生长和副反应等几个问题的阻碍。在此，我们选择酒石酸钠（TA-Na）作为双功能电解质添加剂来增强AZIBs的可逆性。酒石酸阴离子优先吸附在Zn表面，然后高度亲核的羧酸根与Zn 2+配位，促进[Zn(H 2 O) 6 ] 2+的去溶剂化，导致Zn均匀沉积在有益的(002 ）平面并抑制副反应和枝晶生长。因此，Zn|Zn 电池在 0.5 mA cm –2下表现出超过 1500 次循环的长期循环稳定性。此外，Ta-Na添加剂改善了Zn||MnO 2全电池的性能，在有限Zn阳极的实际条件下（负/正容量比为10/10）在1 A g –1下的1000次循环寿命证明了这一点。 1) 和受控电解质（电解质/容量比为 20 μL mAh –1 ）。
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