Article
Chemistry, Physical
Jingdong Yang, Xiao Wang, Jinxing Wang, Xiaoyang Dong, Ling Zhu, Dewen Hou, Wen Zeng, Jingfeng Wang, Fusheng Pan
Summary: The study investigates the pre-intercalation of metal ions in layered cathodes for Mg-ion batteries, focusing on the energetically favorable process and improved electronic conductivity of V2O5. The interaction between Al ion and V2O5 is found to be the strongest among Li, Na, and Al pre-intercalated V2O5, indicating potential for enhancing performance of cathodes.
APPLIED SURFACE SCIENCE
(2021)
Review
Chemistry, Physical
Yaokun Ye, Zongxiang Hu, Jiahua Liu, Weicheng Lin, Taowen Chen, Jiaxin Zheng, Feng Pan
Summary: Lithium-ion batteries (LIBs) are suitable for electric vehicles due to their safety, portability, and high energy density. Polaron research in cathode materials plays a crucial role in guiding the design of high-electronic-conductivity cathode materials and improving the electrochemical performance of LIBs. Experimental verification is necessary despite the lack of universal criteria for theoretical identification of polarons. Low electronic conductivity caused by polarons can be mitigated through doping, which is a common strategy for tuning polarons in cathode materials.
ACTA PHYSICO-CHIMICA SINICA
(2021)
Article
Materials Science, Multidisciplinary
Tao He, Yusheng Ye, Hui Li, Suting Weng, Qinhua Zhang, Matthew Li, Tongchao Liu, Jianli Cheng, Xuefeng Wang, Jun Lu, Bin Wang
Summary: The oxygen-deficient NH4V4O10-x·nH(2)O (NVOH) microspheres are synthesized and used as cathodes for aqueous zinc batteries (AZBs), demonstrating a high energy density, fast Zn2+ diffusion, and excellent electrochemical performance over a wide temperature range. The NVOH shows a capacity retention of 100% after 100 cycles at 0.1 A g(-1) and around 94% after 2600 cycles at 2 A g(-1) and -30 degrees C. Investigation into the mechanism of the process reveals that the surface capacitive behaviors contribute dominantly to the capacity, while diffusion-controlled capacity decay causes the capacity attenuation. Flexible AZBs can power portable electronics steadily under different bending states, showing great potential for wide-temperature wearable devices.
Article
Multidisciplinary Sciences
Leqing Deng, Jiale Qu, Xiaogang Niu, Juzhe Liu, Juan Zhang, Youran Hong, Meiying Feng, Jiangwei Wang, Miao Hu, Liang Zeng, Qianfan Zhang, Lin Guo, Yujie Zhu
Summary: The potassium-ion battery shows great potential as a post-Li-ion energy storage system, but the lack of high-performance cathode materials has been a barrier to practical applications. In this study, defect-free potassium manganese hexacyanoferrate is investigated as a cathode active material for high-energy and long-lasting potassium-based cells.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Shao-Fang Li, Xian-Kun Hou, Zhen-Yi Gu, Yun-Feng Meng, Chen-De Zhao, Hong-Xia Zhang, Xing-Long Wu
Summary: In this study, a sponge-like NaFe2PO4(SO4)(2)@reduced graphene oxide material was successfully prepared using an ultrafast self-propagating combustion process, demonstrating favorable surface characteristics. The carbon coating on the material contributed to its enhanced rate and cyclic performance, making it a promising candidate for cathode materials in sodium-ion batteries.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Armance Sagot, Lorenzo Stievano, Valerie Pralong
Summary: This study reports the synthesis and electrochemical activity of a novel polymorph of K3MnO4, which has a 0D-type structure composed of isolated MnO4 tetrahedra and K+ ions. A reversible charge capacity of almost one K+ per unit formula at an average voltage of 2.3 V vs K+/K is achieved, leading to the reversible formation of K2MnO4 through a biphasic process.
ACS APPLIED ENERGY MATERIALS
(2023)
Review
Chemistry, Physical
Xiaoyu Wu, Yaying Dou, Ruqian Lian, Yizhan Wang, Yingjin Wei
Summary: This review discusses the latest advancements in theoretical studies on cathode and anode materials as well as electrolytes of magnesium ion batteries (MIBs), focusing on their thermodynamic properties, electronic structures, kinetic properties, and their relationship to electrochemical properties. The prospects for the future development of MIBs are also presented.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jungmin Kang, Jinho Ahn, Hyunyoung Park, Wonseok Ko, Yongseok Lee, Seokjin Lee, Sangyeop Lee, Sung-Kyun Jung, Jongsoon Kim
Summary: This study reports a promising fluoride-based cathode material, Na2TiFeF7, for sodium-ion batteries, which demonstrates high specific capacity and low power attenuation. The material possesses a three-dimensional diffusion pathway, allowing for excellent cycle life and capacity retention.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Guxin Huang, Jianing Liang, Xingguo Zhong, Haoyue Liang, Can Cui, Cheng Zeng, Shuhao Wang, Mengyi Liao, Yue Shen, Tianyou Zhai, Ying Ma, Huiqiao Li
Summary: In this study, the pre-lithiation performance of Li2C2O4 as a cathode additive was greatly improved by optimizing the combination of conductive additives and catalysts, reducing the particle size, and designing a bilayer electrode. By lowering the delithiation potential, the capacity of Li2C2O4 was increased to its theoretical value and effectively applied to a hard carbon anode.
Article
Chemistry, Physical
Yongsheng Shi, Peipei Yin, Jun Li, Xiaozhuo Xu, Qinting Jiang, Jiayin Li, Hirbod Maleki Kheimeh Sari, Jingjing Wang, Wenbin Li, Junhua Hu, Qingxin Lin, Jingqian Liu, Jun Yang, Xifei Li
Summary: The FeF3/Fe/GC nanocomposite, fabricated by low-temperature fluorination, exhibits high specific capacity and excellent cycle stability, thanks to the pseudocapacitive contribution and optimized structure of the nanocomposite.
Article
Chemistry, Analytical
Duyoung Choi, Ji-Yeon Shim, Sungwoong Choi, Sangmin Park, Harok Jeong, Min -Su Kim, Jungpil Kim, Junghoon Yang
Summary: Alkali vanadium phosphates are promising electrode materials for next-generation ion batteries, but suffer from low electronic conductivity due to phosphate group. In this study, a method of building an effective carbon backbone in alkali vanadium phosphate and carbon composite is proposed to overcome this issue. The carbon backbone not only provides electron pathways but also suppresses particle agglomeration, resulting in efficient ion diffusion and electron transfer. The importance of efficient carbon composite materials for phosphate-based electrode materials is demonstrated by investigating the rhombohedral Li3V2(PO4)3 material as a cathode and anode for lithium-ion batteries, which is a different phase from the well-known monoclinic Li3V2(PO4)3.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Jerome Bodart, Nicolas Eshraghi, Moulay Tahar Sougrati, Frederic Boschini, Pierre-Emmanuel Lippens, Benedicte Vertruyen, Abdelfattah Mahmoud
Summary: The Na2FePO4F/CNT composite prepared by an optimized spray-drying process showed excellent initial discharge capacity when cycled against sodium. After optimizing the electrolyte composition, this composite material also demonstrated reversible intercalation of potassium ions with promising specific capacity. Electrochemical desodiation was the key factor in achieving outstanding performance, with the NaKFePO4F/CNT composite exhibiting stable high capacity in K-ion batteries.
JOURNAL OF POWER SOURCES
(2023)
Article
Electrochemistry
Y. P. Wang, B. P. Hou, X. R. Cao, S. Q. Wu, Z. Z. Zhu
Summary: Prussian blue analogs Na2FeFe(CN)(6) are considered as potential cathode materials for sodium-ion batteries due to low-cost iron resources and open framework. Detailed first-principles calculations reveal a phase transition and high rate performance during Na ion extraction process.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Xuan Gao, Chengyi Zhang, Yuhang Dai, Siyu Zhao, Xueying Hu, Fangjia Zhao, Wei Zhang, Ruwei Chen, Wei Zong, Zijuan Du, Haobo Dong, Yiyang Liu, Hongzhen He, Jianwei Li, Ivan P. P. Parkin, Guanjie He, Claire J. J. Carmalt
Summary: Zinc-ion batteries (ZIBs) have potential for use in grid-scale energy storage systems, but suitable cathode materials are needed. MnO2-based cathodes are emerging as promising contenders due to their availability, safety, and stable output voltage. However, their slow kinetics caused by low electrical conductivity and mass diffusion rate are a challenge for rapid charging devices. This study proposes a sodium-intercalated manganese oxide (NMO) with 3D varying thinness carbon nanotubes (VTCNTs) networks as free-standing, binder-free cathodes, which overcome the challenges and achieve excellent capacity and long-term cycling stability.
Article
Chemistry, Physical
Xingxing Jiao, Alina V. Kirianova, Xieyu Xu, Olesya O. Kapitanova, Victor A. Krivchenko, Filipp S. Napolskiy, Valentyn S. Volkov, Marat O. Gallyamov, Yangyang Liu
Summary: Conductive additive is an indispensable key material in the high-current charging and discharging processes of lithium-ion batteries. Its addition helps to improve the poor conductive performance of the electrode-active material, reduce the internal resistance and polarization of the electrode, and enhance the overall performance of the battery.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Orkun Furat, Donal P. Finegan, Zhenzhen Yang, Matthias Neumann, Sangwook Kim, Tanvir R. Tanim, Peter Weddle, Kandler Smith, Volker Schmidt
Summary: The operating temperature has a significant impact on the degradation behavior of batteries. This study investigates the structural degradation of lithium-ion positive electrodes under different operating temperatures, and finds that particle porosity increases with higher cycling temperature, while particle surface area remains similar across different cycling-temperature aging conditions.
ENERGY STORAGE MATERIALS
(2024)
Article
Chemistry, Physical
Junyan Li, Ming Lu, Weijia Zheng, Wei Zhang
Summary: MXenes are two-dimensional materials with unique structures and properties, which have attracted significant scientific interest. Ion intercalation, as an important mechanism, plays a crucial role in regulating the electronic and chemical properties of MXene materials. This review provides an overview of the interaction events between ions and MXenes, including advanced characterization techniques, influencing factors, mechanisms, and functionalization roles of ion intercalation.
ENERGY STORAGE MATERIALS
(2024)
Article
Chemistry, Physical
Zhengtai Zha, Tianjiang Sun, Diantao Li, Tao Ma, Weijia Zhang, Zhanliang Tao
Summary: A novel zwitterion additive is developed to improve the electrochemical performance and cycling stability of aqueous zinc batteries. The zwitterion forms a stable solid electrolyte interphase on the electrode surface, isolating the zinc anode from the electrolytes and enabling fast zinc ion migration. The proposed electrolyte shows promising results in symmetric cells and full cells, with long cycling stability and high capacity retention.
ENERGY STORAGE MATERIALS
(2024)
Article
Chemistry, Physical
Nyung Joo Kong, Myeong Seon Kim, Jae Hyun Park, Jongbok Kim, Jungho Jin, Hyun-Wook Lee, Seok Ju Kang
Summary: Polymeric conducting binders have significant research value as they can serve as both binders and conducting agents, increasing the proportion of active materials in batteries and the volumetric energy density. This study explores the potential of a composite of PEDOT:PSS and polyethylene glycol (PEG) as a high-performing binder for silicon anodes. The addition of PEG polymer enhances the conductivity of PEDOT:PSS and improves the mechanical properties of the silicon anode, resulting in extended cycle endurance. The use of operando optical microscopy allows for direct observation of the binder's operation. Consequently, the bifunctional PEDOT:PSS/PEG binder shows promise for high-performance lithium-ion battery binders.
ENERGY STORAGE MATERIALS
(2024)
Article
Chemistry, Physical
Yangze Huang, Lixuan Zhang, Jiawen Ji, Chenyang Cai, Yu Fu
Summary: This study proposed a novel temperature-dependent viscoelastic liquid electrolyte and a hollow transition bi-metal selenide as the sulfur host material to address the issues in Li-S batteries. The experiments showed promising results in stabilizing the anode and improving cycling performance.
ENERGY STORAGE MATERIALS
(2024)
Article
Chemistry, Physical
Ao Yu, Wei Zhang, Nimanyu Joshi, Yang Yang
Summary: This review provides a comprehensive overview of research progress in ZIB anodes, including protective coating layers on zinc surfaces and intercalated anode materials. By designing protective coating layers and selecting appropriate intercalated anode materials, the inherent limitations of zinc metal anode can be overcome, leading to improved reliability and performance of ZIBs.
ENERGY STORAGE MATERIALS
(2024)
Article
Chemistry, Physical
Xin Wang, Yumiao Tian, Konghua Yang, Chenhui Ma, Wenqiang Lu, Xiaofei Bian, Nan Chen, Heng Jiang, Yan Li, Xing Meng, Pengyue Gao, Dong Zhang, Fei Du
Summary: Researchers developed a new sandwich deposition approach using boron nitride layer as a current collector, which enhances the performance of aqueous zinc-ion batteries.
ENERGY STORAGE MATERIALS
(2024)
Article
Chemistry, Physical
Sang Jun Lee, Dongwoo Kang, Dong Yeol Hyeon, Dong Seok Kim, Suyoon Eom, Su Hwan Jeong, Dong Park Lee, Dawon Baek, Jou-Hyeon Ahn, Gyeong Hee Ryu, Kwi-Il Park, San Moon, Joo-Hyung Kim
Summary: This study utilizes the ice-templating method to create a self-supporting three-dimensional hierarchical porous structure, which effectively inhibits sodium dendrite growth and improves the performance and longevity of sodium-metal batteries.
ENERGY STORAGE MATERIALS
(2024)
Article
Chemistry, Physical
Yifan Yu, Meng Lei, Yangyang Liu, Keyi Chen, Chuanzhong Lai, Jiulin Hu, Chilin Li
Summary: Metal fluorides as conversion-reaction cathodes have advantages such as low cost, environmentally friendly, and high energy density. In this study, a hydroxyl-rich copper fluoride (Cu2(OH)3F) was proposed as a conversion cathode, coupled with an electrolyte additive engineering, to address the poor reversibility issue. The presence of OH in Cu2(OH)3F enables effective suppression of Cu+ dissolution, resulting in better reaction reversibility and kinetics.
ENERGY STORAGE MATERIALS
(2024)
