将废弃的镍锰钴酸锂阴极回收为用于锌空气电池的双功能镍锰钴催化剂。
Recycling spent LiNiMnCoO cathodes to bifunctional NiMnCo catalysts for zinc-air batteries.
作者信息
Jiao Miaolun, Zhang Qi, Ye Chenliang, Liu Zhibo, Zhong Xiongwei, Wang Junxiong, Li Chuang, Dai Lixin, Zhou Guangmin, Cheng Hui-Ming
机构信息
Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.
Department of Chemistry, Tsinghua University, Beijing 100084, China.
出版信息
Proc Natl Acad Sci U S A. 2022 May 17;119(20):e2202202119. doi: 10.1073/pnas.2202202119. Epub 2022 May 9.
SignificanceIn recent years, lithium-ion batteries (LIBs) have been widely applied in electric vehicles as energy storage devices. However, it is a great challenge to deal with the large number of spent LIBs. In this work, we employ a rapid thermal radiation method to convert the spent LIBs into highly efficient bifunctional NiMnCo-activated carbon (NiMnCo-AC) catalysts for zinc-air batteries (ZABs). The obtained NiMnCo-AC catalyst shows excellent electrochemical performance in ZABs due to the unique core-shell structure, with face-centered cubic Ni in the core and spinel NiMnCoO in the shell. This work provides an economical and environment-friendly approach to recycling the spent LIBs and converting them into novel energy storage devices.
近年来，锂离子电池（LIBs）作为储能装置已广泛应用于电动汽车中。然而，处理大量废旧锂离子电池是一项巨大挑战。在本工作中，我们采用快速热辐射法将废旧锂离子电池转化为用于锌空气电池（ZABs）的高效双功能镍锰钴活性炭（NiMnCo-AC）催化剂。所制备的NiMnCo-AC催化剂由于其独特的核壳结构，在锌空气电池中表现出优异的电化学性能，核为面心立方镍，壳为尖晶石NiMnCoO。这项工作为回收废旧锂离子电池并将其转化为新型储能装置提供了一种经济且环保的方法。
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