Battery Energy

Abstract Sodium‐ion batteries are emerging as promising alternative energy sources compared to lithium‐ion batteries, due to the abundant sodium resources in Earth's crust and their low cost. Nevertheless, the larger ionic radius of sodium ions leads to minor energy density in sodium‐layered oxide cathodes. To address this, anionic redox has attracted significant attention as it provides additional capacity beyond cationic redox. In this comprehensive review, the history and fundamental mechanisms of anionic redox are systematically summarized, and the recent advancements in sodium‐layered oxides with anionic redox is categorized and discussed according to deficient sodium‐layered oxides, stoichiometric sodium‐layered oxides, and sodium‐rich layered oxides. Finally, several prospects and challenges for anionic redox‐layered oxide cathodes have also been proposed. This review sheds light on the potential trajectory of sodium‐ion battery technology and highlights the pathways to harness the full capabilities of anionic redox for energy storage applications.

Mubao Gu

Junling Xu

Xiaoyan Shi

Lianyi Shao

Zhipeng Sun

Battery energy

Research progress of oxygen redox in sodium‐layered oxides

钠层状氧化物中氧氧化还原的研究进展

Abstract Ni‐rich layered (NRL) cathodes have been widely considered to undergo a degeneration from layered to spinel‐like phases and finally to a rock−salt phase, which jeopardizes the battery's performance and safety. However, this process does not sufficiently explain the drastic structure collapse that occurs during thermal runaway, as the lattice constants of these structures are similar. Herein, an intermediate β‐Li 2 NiO 3 phase is identified during the thermally driven structural evolution via in situ heating scanning transmission electron microscopy imaging. The antihoneycomb‐ordered structure leads to a larger lattice mismatch of up to ∼15% with the layered structure. The resulting strain triggers huge bulk stress and the labile oxygen of the β‐Li 2 NiO 3 phase aggravates the oxygen release, severely reducing the thermal stability of NRL materials. Finally, based on the screening for 3d transition metals, doping elements are chosen to suppress the β‐Li 2 TMO 3 phase and enhance thermal stability. The findings provide comprehensive insights into the structural degradation process of NRL materials and pave the way to design high‐performance and safe battery systems.

Ang Gao

Xinyan Li

Qinghua Zhang

Yingchun Lyu

Zhexin Tang

Tongtong Shang

Fanqi Meng

Yanhong Luo

Pengxiang Ji

Xuefeng Wang

Dongdong Xiao

Dong Su

Yong‐Sheng Hu

Hong Li

Zhen Chen

Lin Gu

Critical intermediate β‐Li2NiO3 phase for structural degradation of Ni‐rich layered cathodes during thermal runaway

富镍层状正极热失控过程中结构退化的关键中间相β-Li2NiO3

Abstract Lithium–ion battery (LIB) suffers from safety risks and narrow operational temperature range in despite the rapid drop in cost over the past decade. Subjected to the limited materials choices, it is not feasible to modify the cathode and anode to improve the battery's wide‐temperature performance, hence, optimizing the design of the electrolyte system has currently become the most feasible and economical way to broaden the operating temperature range of LIBs. Considering urgent demands for wide‐temperature LIBs and achieved enormously excited results about wide‐temperature electrolytes in recent years, a review about this topic and scope is timely and important at present. In this study, we first examine the physicochemical properties of current commercial electrolytes with emphasis on the variations of key parameters along with the temperature. After that, we give comprehensive overview of the employed strategies for separately improving the electrochemical performance of electrolytes toward low‐temperature, high‐temperature, and wide‐temperature applications. Furthermore, recent progress of ionic liquids and solid‐state electrolytes that are capable of working within wide temperature range is also summarized. We hope this review will provide deep understanding of the design principles of wide‐temperature electrolyte, and inspire more endeavors to conquer the practicability issue of LIBs in extreme environments.

Long Chen

Honglun Wu

Xinping Ai

Yuliang Cao

Zhongxue Chen

Toward wide‐temperature electrolyte for lithium–ion batteries

面向锂离子电池的宽温电解质

ABSTRACT Even the most conservative projections suggest that significantly higher demand for batteries in the transport sector is expected in the coming years. A relevant concern is the supply security of lithium‐ion batteries, which has been raised and discussed in existing literature in the context of sustainability and the technological readiness of different parts of the battery value chain. However, an up‐to‐date analysis of this value chain is beneficial to spotlight the main current bottlenecks. This perspective article aims to make a worthwhile contribution in two respects: first, to encourage further research in the techno‐economic aspects of lithium‐ion and beyond battery chemistries; second, to aid investors and policymakers in the decision‐making process paving the road for the realization of the sustainability goals in the transport sector.

Mohammadhosein Safari

A Perspective on the Battery Value Chain and the Future of Battery Electric Vehicles

电池价值链及电动汽车未来展望

ABSTRACT Lithium‐ion batteries (LIBs) have established themselves as the preferred power sources for both pure electric and hybrid vehicles, attributable to their exceptional characteristics, including prolonged cycle life, elevated energy density, and minimal self‐discharge rates. Metal‐organic frameworks (MOFs), as innovative functional molecular crystal materials, exhibit promising application prospects in LIBs. This paper provides a comprehensive overview of the latest advancements in the synthesis techniques and structural modulation of MOFs and their derivative materials. It particularly emphasizes a thorough exploration of the utilization of MOFs and their derivatives in the anode, cathode, and separators of LIBs. Additionally, this paper delves into the current obstacles encountered by MOFs in LIB applications and offers insights into their potential future development.

Xiao Zhang

Yanhuai Ding

Research Progress on the Application of MOF Materials in Lithium‐Ion Batteries

金属有机框架材料在锂离子电池中的应用研究进展

ABSTRACT Separators play a significant role in the safety and performance of lithium‐ion batteries. In this study, composite separators were fabricated using montmorillonite (MMT) as a filler in a high‐density polyethylene (HDPE) matrix, followed by electron irradiation to enhance the safety and performance of separator. Electron irradiation induces chemical bonds by crosslinking between HDPE chains, also between the MMT and HDPE. MMT features a two‐dimensional layered structure with a high surface area, providing abundant crosslinking sites. MMT is treated with a silane coupling agent, which induces layer exfoliation. The exfoliation increases the surface area of MMT, thereby providing more crosslinking sites. Additionally, the surface modification of MMT enhances its affinity with HDPE, leading to better dispersion of MMT within the HDPE matrix. Simultaneously, electron irradiation in an air atmosphere generates polar functional groups, improving the electrolyte affinity of the separator. Consequently, the safety of the MMT composite separator was significantly enhanced, exhibiting a high puncture strength of 0.52 N μm −1 and a thermal shrinkage rate of 21.4% at 135°C for 30 min. Li//LCO cells using the composite separator demonstrated superb cycle stability with a discharge retention of 98.7% and a coulombic efficiency of 99.6% after 200 cycles at 0.5 C, and exhibited rate capability maintaining 74.5% of the capacity at 20 C compared to 0.5 C.

Sungwoo Kim

Md Amir Sohel

Ji Chan Kim

Sung Oh Cho

Electron‐Irradiated Montmorillonite/Polyethylene Composite Separator for High‐Performance Lithium‐Ion Battery

电子辐照蒙脱石/聚乙烯复合隔膜用于高性能锂离子电池

ABSTRACT High‐nickel LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) cathode paired with silicon‐based graphite (SiO/Gr) is pivotal for enhancing the energy density of lithium‐ion batteries (LIBs). However, the high reactivity of NCM811 with the electrolyte and the volumetric expansion issues associated with SiO/Gr pose significant challenges to their practical application. To settle these issues, we explore the impact of additives with phenyl and acid anhydride moieties on the performance of NCM811‖SiO/Gr pouch cells across a wide temperature range of −20°C~60°C. Acid anhydride additives are capable of diminishing the internal resistance in NCM811‖SiO/Gr pouch cells, as well as curbing gas evolution and thickness increase during the operational phase. Notably, the batteries enriched with citraconic anhydride (CAn) and succinic anhydride (SAn) additives after 120 cycles at 45°C demonstrated enhanced capacity retention from 83.2% to 88.1% and 85.5%, respectively. Intriguingly, the inclusion of phenyl‐containing additives in the electrolyte was found to be advantageous for NCM811‖SiO/Gr pouch cells' low‐temperature performance. Furthermore, neither type of functional group significantly enhanced performance at room conditions. Consequently, the combination of additives is necessary to fulfill the stringent requirements of LIBs for extreme environment applications. This work guides designing composite electrolytes for high energy density wide temperature operation LIBs.

Chengyun Wang

Jin Chen

Yaowei Feng

Xiuqin Deng

Xiaoxian Pang

Hanbo Zou

Wei Yang

Shengzhou Chen

Xijun Xu

Effect of Additives With Phenyl and Acid Anhydride Functional Groups on the Wide Temperature Operation Performance of LiNi0.8Co0.1Mn0.1O2||SiO/Graphite Pouch Cells

含苯基和酸酐功能团添加剂对LiNi0.8Co0.1Mn0.1O2||SiO/石墨软包电池宽温操作性能的影响

ABSTRACT Lithium ion batteries (LIBs) have brought about a revolution in the electronics industry and are now almost a part of our everyday activities. They are on the verge of finding application in almost every electronic rechargeable device and have a bright future ahead. With the recent discovery of substantial reserves of lithium in India, along with the favourable government policies for the usage of electric vehicles (EVs), LIBs are expected to play a major role in meeting sustainable energy goals. Though LIBs have become a commercial success, they face many challenges, such as high cost of production, thermal runaway and overcharging, that might hamper their extensive use. Many research studies have been conducted regarding the operation of LIB, with safety being a concern. With rapid technology development, going nanoscale for LIB production has become achievable and valuable as it has been reported to increase the shelf life of the battery. In this review, recycling of spent LIBs is discussed, as the extraction of the leftover lithium and other minerals is possible through recycling process. The advantages and drawbacks of deep‐sea lithium mining have been discussed, as it is explored as an alternative to major lithium sources due to the rapid depletion of land mining sources. Its impact on the environment and the mineral market has been assessed. This review paper attempts to give an overview of all the vital characteristics of an LIB, such as life cycle, fast charging and overcharging, while covering strategies for overcoming challenges faced in the functioning of LIBs.

Samrudh Devanahalli Bokkassam

Jegatha Nambi Krishnan

Lithium Ion Batteries: Characteristics, Recycling and Deep‐Sea Mining

锂离子电池：特性、回收与深海采矿

Abbreviation
Journal Impact	9.01
Quartiles(Global)	MATERIALS SCIENCE, MULTIDISCIPLINARY(Q1)

Publication Information	Publisher: John Wiley and Sons Inc，Publishing cycle: ，Journal Type: journal，Open Access Journals: No
Basic data	Year of publication: 2022，Proportion of original research papers: ，Self Citation Rate:， Gold OA Rate:

Battery Energy

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Research progress of oxygen redox in sodium‐layered oxides

Critical intermediate β‐Li₂NiO₃ phase for structural degradation of Ni‐rich layered cathodes during thermal runaway

Toward wide‐temperature electrolyte for lithium–ion batteries

A Perspective on the Battery Value Chain and the Future of Battery Electric Vehicles

Research Progress on the Application of MOF Materials in Lithium‐Ion Batteries

Electron‐Irradiated Montmorillonite/Polyethylene Composite Separator for High‐Performance Lithium‐Ion Battery

Effect of Additives With Phenyl and Acid Anhydride Functional Groups on the Wide Temperature Operation Performance of LiNi_0.8Co_0.1Mn_0.1O₂||SiO/Graphite Pouch Cells

A Perspective on the Battery Value Chain and the Future of Battery Electric Vehicles

Research Progress on the Application of MOF Materials in Lithium‐Ion Batteries

Lithium Ion Batteries: Characteristics, Recycling and Deep‐Sea Mining