Stabilized Nickel-Rich-Layered Oxide Electrodes for High-Performance Lithium-Ion Batteries

IF 13 2区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Zahra Ahaliabadeh, Ville Miikkulainen, Miia Mäntymäki, Mattia Colalongo, Seyedabolfazl Mousavihashemi, Lide Yao, Hua Jiang, Jouko Lahtinen, Timo Kankaanpää, Tanja Kallio
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Abstract

Next-generation Li-ion batteries are expected to exhibit superior energy and power density, along with extended cycle life. Ni-rich high-capacity layered nickel manganese cobalt oxide electrode materials (NMC) hold promise in achieving these objectives, despite facing challenges such as capacity fade due to various degradation modes. Crack formation within NMC-based cathode secondary particles, leading to parasitic reactions and the formation of inactive crystal structures, is a critical degradation mechanism. Mechanical and chemical degradation further deteriorate capacity and lifetime. To mitigate these issues, an artificial cathode electrolyte interphase can be applied to the active material before battery cycling. While atomic layer deposition (ALD) has been extensively explored for active material coatings, molecular layer deposition (MLD) offers a complementary approach. When combined with ALD, MLD enables the deposition of flexible hybrid coatings that can accommodate electrode material volume changes during battery operation. This study focuses on depositing TiO 2 -titanium terephthalate thin films on a LiNi 0.8 Mn 0.1 Co 0.1 O 2 electrode via ALD-MLD. The electrochemical evaluation demonstrates favorable lithium-ion kinetics and reduced electrolyte decomposition. Overall, the films deposited through ALD-MLD exhibit promising features as flexible and protective coatings for high-energy lithium-ion battery electrodes, offering potential contributions to the enhancement of advanced battery technologies and supporting the growth of the EV and stationary battery industries.

Abstract Image

Abstract Image

用于高性能锂离子电池的稳定镍-瑞克层氧化物电极
下一代锂离子电池有望表现出更高的能量和功率密度,同时延长循环寿命。富镍高容量层状镍锰钴氧化物电极材料(NMC)有望实现这些目标,尽管它面临着各种降解模式导致容量衰减等挑战。在基于 NMC 的阴极次生颗粒内形成裂缝,导致寄生反应和非活性晶体结构的形成,是一种关键的降解机制。机械和化学降解会进一步恶化容量和寿命。为了缓解这些问题,可以在电池循环之前在活性材料上涂抹人工阴极电解质中间相。原子层沉积(ALD)已被广泛用于活性材料涂层,而分子层沉积(MLD)则提供了一种补充方法。当分子层沉积与原子层沉积相结合时,就能沉积出灵活的混合涂层,以适应电池运行过程中电极材料体积的变化。本研究的重点是通过 ALD-MLD 在电极上沉积对苯二甲酸钛薄膜。电化学评估结果表明,锂离子动力学良好,电解质分解减少。总之,通过 ALD-MLD 沉积的薄膜作为高能量锂离子电池电极的柔性保护涂层表现出了良好的特性,为提高先进电池技术和支持电动汽车和固定电池行业的发展做出了潜在的贡献。
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来源期刊
Energy & Environmental Materials
Energy & Environmental Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
17.60
自引率
6.00%
发文量
66
期刊介绍: Energy & Environmental Materials (EEM) is an international journal published by Zhengzhou University in collaboration with John Wiley & Sons, Inc. The journal aims to publish high quality research related to materials for energy harvesting, conversion, storage, and transport, as well as for creating a cleaner environment. EEM welcomes research work of significant general interest that has a high impact on society-relevant technological advances. The scope of the journal is intentionally broad, recognizing the complexity of issues and challenges related to energy and environmental materials. Therefore, interdisciplinary work across basic science and engineering disciplines is particularly encouraged. The areas covered by the journal include, but are not limited to, materials and composites for photovoltaics and photoelectrochemistry, bioprocessing, batteries, fuel cells, supercapacitors, clean air, and devices with multifunctionality. The readership of the journal includes chemical, physical, biological, materials, and environmental scientists and engineers from academia, industry, and policy-making.
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