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Wood-Derived Continuously Oriented Three-Phase Interfacial Channels for High-Performance Quasi-Solid-State Alkaline Zinc Batteries
Advanced Materials ( IF 27.4 ) Pub Date : 2023-03-25 , DOI: 10.1002/adma.202300132 Lanze Li 1 , Qinghe Cao 2 , Yitian Wu 1 , Yu Zheng 1 , Hongxuan Tang 1 , Jiujiu Ge 1 , Mengdi Liang 1 , Bao Zhou 1 , Baiyu Jiang 1 , Sai Wu 1 , Fan Wang 1 , Yajun Pang 1 , Zhehong Shen 1 , Cao Guan 2 , Hao Chen 1
Advanced Materials ( IF 27.4 ) Pub Date : 2023-03-25 , DOI: 10.1002/adma.202300132 Lanze Li 1 , Qinghe Cao 2 , Yitian Wu 1 , Yu Zheng 1 , Hongxuan Tang 1 , Jiujiu Ge 1 , Mengdi Liang 1 , Bao Zhou 1 , Baiyu Jiang 1 , Sai Wu 1 , Fan Wang 1 , Yajun Pang 1 , Zhehong Shen 1 , Cao Guan 2 , Hao Chen 1
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Although recently developed hybrid zinc (Zn) batteries integrate the benefits of both alkaline Zn and Zn–air batteries, the kinetics of the electrocatalytic oxygen reaction and mass transfer of the electrolyte, which are limited by the mismatched and disordered multiphase reaction's interfacial transfer channels, considerably inhibit the performance of hybrid Zn batteries. In this work, novel, continuously oriented three-phase interfacial channels at the cathode derived from the natural structure of pine wood are developed to address these challenges. A pine wood chip is carbonized and asymmetrically loaded with a hydrophilic active material to achieve the creation of a wood-derived cathode that integrates the active material, current collector, and continuously oriented three-phase reaction interfacial channels, which allows the reaction dynamics to be accelerated. Consequently, the assembled quasi-solid-state hybrid battery performs an extra charge–discharge process beyond that performed by a typical nickel (Ni)–Zn battery, resulting in a wide operating voltage range of 0.6–2.0 V and a superior specific capacity of 656.5 mAh g–1, in addition to an excellent energy density (644.7 Wh kg–1) and good durability. The ≈370% capacity improvement relative to the Ni–Zn battery alone makes the hybrid battery one of the best-performing alkaline Zn batteries.
中文翻译：
用于高性能准固态碱性锌电池的木材连续取向三相界面通道
尽管最近开发的混合锌（Zn）电池结合了碱性锌电池和锌空气电池的优点，但电催化氧反应和电解质传质的动力学受到不匹配和无序的多相反应界面传输通道的限制，显着抑制混合锌电池的性能。在这项工作中，开发了源自松木天然结构的新型、连续定向的阴极三相界面通道来应对这些挑战。将松木片碳化并不对称负载亲水活性材料，以实现集活性材料、集流体和连续定向三相反应界面通道于一体的木材正极的创建，这使得反应动力学加速。因此，组装的准固态混合电池执行超出典型镍（Ni）-Zn电池执行的额外充电-放电过程，从而产生0.6-2.0 V的宽工作电压范围和优异的比容量656.5毫安时–1，此外还具有出色的能量密度 (644.7 Wh kg –1 ) 和良好的耐用性。相对于单独的镍锌电池，容量提高约 370%，使得混合电池成为性能最好的碱性锌电池之一。
更新日期：2023-03-25
中文翻译：
用于高性能准固态碱性锌电池的木材连续取向三相界面通道
尽管最近开发的混合锌（Zn）电池结合了碱性锌电池和锌空气电池的优点，但电催化氧反应和电解质传质的动力学受到不匹配和无序的多相反应界面传输通道的限制，显着抑制混合锌电池的性能。在这项工作中，开发了源自松木天然结构的新型、连续定向的阴极三相界面通道来应对这些挑战。将松木片碳化并不对称负载亲水活性材料，以实现集活性材料、集流体和连续定向三相反应界面通道于一体的木材正极的创建，这使得反应动力学加速。因此，组装的准固态混合电池执行超出典型镍（Ni）-Zn电池执行的额外充电-放电过程，从而产生0.6-2.0 V的宽工作电压范围和优异的比容量656.5毫安时–1，此外还具有出色的能量密度 (644.7 Wh kg –1 ) 和良好的耐用性。相对于单独的镍锌电池，容量提高约 370%，使得混合电池成为性能最好的碱性锌电池之一。
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