Article
Multidisciplinary Sciences
Tongchao Liu, Jiajie Liu, Luxi Li, Lei Yu, Jiecheng Diao, Tao Zhou, Shunning Li, Alvin Dai, Wenguang Zhao, Shenyang Xu, Yang Ren, Liguang Wang, Tianpin Wu, Rui Qi, Yinguo Xiao, Jiaxin Zheng, Wonsuk Cha, Ross Harder, Ian Robinson, Jianguo Wen, Jun Lu, Feng Pan, Khalil Amine
Summary: Utilizing Li- and Mn-rich (LMR) cathode materials can increase battery energy density. However, voltage decay issues impede commercialization. In this study, it is revealed that nanostrain and lattice displacement accumulate continuously during operation, leading to structure degradation and oxygen loss, which cause rapid voltage decay. The heterogeneous nature of LMR cathodes results in pernicious phase displacement/strain. Mesostructural design is proposed as a strategy to mitigate lattice displacement and achieve stable voltage and capacity profiles.
Article
Energy & Fuels
Gowthami Chandra, Shreyas J. Kashyap, Sudhakara Sarma Sreedhara, Sarada Bulusu, Venu Vinod Ananthula, R. Vijay, Tata N. Rao, Anandan Srinivasan
Summary: The present study focuses on developing carbon-coated lithium iron phosphate (LFP/C) cathode material with good capacity, high atomic efficiency, and high tap density for lithium-ion battery (LIB) fabrication. Fe3O4-LFP/C showed higher atomic efficiency and tap density compared to Fe2O3-LFP/C and Fe-LFP/C. Electrochemical studies demonstrated that Fe3O4-LFP/C exhibited a high capacity of 137 mAh g-1 at 1C and retained 83% capacity after 600 cycles at 1C, indicating excellent cyclic stability. This work provides a pathway for affordable LFP synthesis for high-energy density batteries.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Khushbu Sharma, Rini Singh, Takayuki Ichikawa, Manoj Kumar, Ankur Jain
Summary: All-solid-state Li-ion batteries using Sb chalcogenide composites as electrode materials exhibit high volumetric capacity, retained capacity, and energy density, making them suitable for future Li-ion batteries. The lithiation mechanism involves conversion and alloying reactions similar to liquid electrolyte cases, with a high coulombic efficiency of nearly 99% after initial cycles. The composites show potential as promising candidates for advanced energy storage systems.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Biao Li, Zengqing Zhuo, Leiting Zhang, Antonella Iadecola, Xu Gao, Jinghua Guo, Wanli Yang, Anatolii V. Morozov, Artem M. Abakumov, Jean-Marie Tarascon
Summary: This study decoupled the effects of nickel and cobalt in lithium-rich NMCs and discovered that cobalt is better than nickel in mediating the kinetics of ligand-to-metal charge transfer. However, the use of cobalt leads to poorer cycling performance and more severe voltage decay. This provides valuable guidelines for future high-capacity cathode design.
Article
Chemistry, Physical
Antonis Vamvakeros, Dorota Matras, Thomas E. Ashton, Alan A. Coelho, Hongyang Dong, Dustin Bauer, Yaroslav Odarchenko, Stephen W. T. Price, Keith T. Butler, Olof Gutowski, Ann-Christin Dippel, Martin von Zimmerman, Jawwad A. Darr, Simon D. M. Jacques, Andrew M. Beale
Summary: Synchrotron high-energy X-ray diffraction computed tomography has been employed to investigate the cycling performance of commercial cylindrical Li-ion batteries for the first time, showing its potential in detecting internal battery structure and chemical composition.
Article
Chemistry, Physical
Soyeong Yun, Shoaib Muhammad, Jinhyuk Choi, Wontae Lee, Junwoo Yu, Hayeon Lee, Yongjae Lee, Won-Sub Yoon
Summary: In this study, Li2Ir0.75Sn0.25O3 material was synthesized and the highly reversible structural changes and cation migration were achieved through biphasic reaction, resulting in improved cycle performance and structural stability.
ACS ENERGY LETTERS
(2022)
Article
Chemistry, Physical
Soyeong Yun, Shoaib Muhammad, Jinhyuk Choi, Wontae Lee, Junwoo Yu, Hayeon Lee, Yongjae Lee, Won-Sub Yoon
Summary: The study synthesized a Li2IrO3 material substituting Sn for Ir, resulting in improved cycle performance and structural stability in Li2Ir0.75Sn0.25O3. Highly reversible structural changes, including the O3' phase, due to biphasic reaction were observed. The reversible cation migration of Sn prevented structural collapse, leading to enhanced cycle performance, providing insights for designing high-energy cathode materials.
ACS ENERGY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Min Ku Jeon, Sung-Wook Kim, Maengkyo Oh, Hee-Chul Eun, Keunkyoung Lee
Summary: The chlorination behavior of Li(Ni1/3Co1/3Mn1/3)O-2 (NCM) was studied, and it was found that chlorination leads to a structural transition and the removal of lithium. The chlorination reaction begins at 500 degrees C and is accelerated by an increase in temperature. A temperature of 550 degrees C was proposed as the optimum temperature for the chlorination of NCM.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Eun Cheol Lee, Junghwan Park
Summary: This study traces the change of crystal structure of Li(Ni0.80Co0.15Al0.05)O-2 as a cathode material in a Li-ion battery, and confirms the effect of temperature on crystal structure and the presence of defects generated during battery operation.
Article
Materials Science, Ceramics
Jaegyeom Kim, Junho Ha, Fouzia Khefif, Jong-Young Kim, Seung-Joo Kim
Summary: A new sodium tantalum phosphate, NaTa2PO8, was synthesized via ion exchange reaction in molten NaNO3 medium. The compound exhibited different crystal structures, ionic conductivities, and conduction pathway characteristics between the low-temperature and high-temperature phases.
CERAMICS INTERNATIONAL
(2022)
Article
Physics, Applied
Yunpeng Zhuang, Wenzhuo Shen, Lei Wang, Jiawei Yan, Shouwu Guo
Summary: This study investigates the heat generation power of a LiNi0.8Co0.1Mn0.1O2 cathode in different cycling stages at an elevated temperature. The ion mixing of Li+/Ni2+ severely reduces the diffusion coefficient of Li+ in NCM811, leading to an increase in heat generation. This finding has significant implications for the safety and performance of lithium-ion batteries.
APPLIED PHYSICS LETTERS
(2022)
Article
Electrochemistry
Kazuhito Ogasa, Keisuke Tomiyasu, Yasushi Inda
Summary: Glass ceramics of NASICON-type Li1.15Y0.15Zr1.85P3O12 (a-LYZP) synthesized from amorphous materials exhibit higher ionic conductivity and improved inter-particle contact compared to samples prepared by solid-state reaction (s-LYZP). The structure of a-LYZP effectively reduces the resistance of Li1.15Y0.15Zr1.85P3O12, with a lower activation energy in the temperature range of 263-298 K.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Electrochemistry
Sarish Rehman, J. Michael Sieffert, Christopher J. Lang, Eric McCalla
Summary: In this study, compositions of Nb-based anodes in two pseudobinary systems (NbyW1-yOz and NbxTi1-xOz) were investigated using a high-throughput approach as potential high capacity replacements for Li4Ti5O12. The samples were characterized by both X-ray diffraction and electrochemistry, revealing significant solid solution regions that have not been explored before. The resulting electrochemical data showed excellent performance of many compositions, with capacities over 200 mAh/g, good rate performance, and high diffusion constants, providing a deepening of our understanding of the structure-property relations in these important systems.
ELECTROCHIMICA ACTA
(2023)
Article
Electrochemistry
Hiroyuki Fujimoto, Miwa Murakami, Toshiro Yamanaka, Keiji Shimoda, Hisao Kiuchi, Zempachi Ogumi, Takeshi Abe
Summary: The recharge and discharge mechanism of graphite electrodes is still unclear, and the research team used various technologies for real-time analysis, proposed a synchronized real-time analysis method, and studied the details of the intercalation mechanism.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Julija Vinckeviciute, Daniil A. Kitchaev, Anton Van der Ven
Summary: This study systematically investigates the oxidation mechanisms activated upon Li extraction from Li2MnO3, revealing a two-step oxidation mechanism during the first charge. It involves partial Mn migration and oxidation reaction, followed by an electrochemically silent decomposition reaction. The findings provide insights into the electrochemical consequences and provide explanations for the absence of spectroscopic evidence for certain oxidation species.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Sai Pranav Vanam, Baskar Senthilkumar, Penphitcha Amonpattaratkit, Prabeer Barpanda
Summary: Sodium-based compounds have shown potential as versatile cathodes for monovalent Li-ion and post-Li-ion batteries. In this study, Na0.44MnO2 was used as an intercalation host for Li-ion and K-ion batteries, with resulting compositions NKMO and NLMO exhibiting excellent cycling stability and capacity.
INORGANIC CHEMISTRY
(2022)
Article
Electrochemistry
Pubali Barman, Debasmita Dwibedi, K. Jayanthi, Sher Singh Meena, Supreeth Nagendran, Alexandra Navrotsky, Prabeer Barpanda
Summary: In pursuit of high-energy density sodium insertion materials, researchers designed polyanionic frameworks with tuneable high-voltage operation. In this study, alluaudite sodium insertion material was synthesized using scalable aqueous-based spray drying, and a reversible phase transition from alluaudite to bloedite was observed for the first time. Calorimetric data supported the synthesis and transformation pathways, and spray drying showed promising performance as a method for synthesizing sulfate battery materials.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Chinnasamy Murugesan, Baskar Senthilkumar, Prabeer Barpanda
Summary: This study presents a low-cost carbon-based bifunctional catalyst derived from waste tree leaves. The nitrogen-doped catalyst shows excellent performance in both oxygen reduction reaction and oxygen evolution reaction. The assembled hybrid Na-air battery exhibits reversible electrochemical performance.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Akira Nasu, Atsushi Sakuda, Takuya Kimura, Minako Deguchi, Akihisa Tsuchimoto, Masashi Okubo, Atsuo Yamada, Masahiro Tatsumisago, Akitoshi Hayashi
Summary: This paper reports the use of Na2FeS2 as the host structure and high-capacity active electrode material for all-solid-state sodium batteries. The battery exhibits high capacity and long cycle life, operating reversibly for 300 cycles. The excellent electrochemical properties are derived from the anion-cation redox and rigid host structure. The reversible sulfur redox further contributes to the high capacity without capacity fading.
Article
Energy & Fuels
Seongjae Ko, Tomohiro Obukata, Tatau Shimada, Norio Takenaka, Masanobu Nakayama, Atsuo Yamada, Yuki Yamada
Summary: In this study, the authors investigate the factors affecting the reversibility of lithium-metal anodes and propose an electrolyte design to improve the cycling performance. They find that the lithium electrode potential and its association with the Li+ coordination structure play a crucial role in Coulombic efficiency and electrolyte decomposition. By enhancing ion-pairing solution structure, the authors achieve a significantly improved cycling performance.
Article
Chemistry, Physical
Wojciech Olszewski, Carlo Marini, Satoshi Kajiyama, Masashi Okubo, Atsuo Yamada, Takashi Mizokawa, Naurang Lal Saini, Laura Simonelli
Summary: The local structures of Ti based MXene-type electrode materials were investigated using Ti K-edge X-ray absorption fine structure measurements. The effects of temperature on the local bond lengths and their stiffness were studied. Selective etching was found to significantly affect the local structural properties of Ti based MXene materials, resulting in increased interatomic distances and higher achievable performances. These results highlight the importance of local atomic correlations as limiting factors in the diffusion capacity of ion batteries.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Shashwat Singh, Deobrat Singh, Rajeev Ahuja, Maximilian Fichtner, Prabeer Barpanda
Summary: Eldfellite NaVIII(SO4)(2) is introduced as a new versatile cathode material for Li-ion and Na-ion batteries, with potential two-electron uptake. The study provides mechanistic insights into alkali ion migration and the redox center during (de)insertion of Li+/Na+ ions.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Kosuke Kawai, Masaki Fujita, Ryosei Iizuka, Atsuo Yamada, Masashi Okubo
Summary: Two-dimensional transition-metal carbides/nitrides (MXenes) have high capacitance, high-rate capability, and good cycle stability, making them ideal electrode materials for electrochemical energy storage devices. The different surface termination groups, such as -O, -OH, and -F, play an important role in the electrochemical properties of MXene electrodes.
Review
Chemistry, Physical
Pawan Kumar Jha, Valerie Pralong, Maximilian Fichtner, Prabeer Barpanda
Summary: K-ion batteries (KIBs) are an efficient alternative to Li-ion batteries (LIBs) with similar chemistry, energy densities, elemental economy, and abundant resources. P3 type layered oxides, including single transition metal based KxMO2 and multiple transition metals based KxM11-yM2yO2 and KxM11-y-zM2yM3z O2, show promise as cathodes for KIBs with their easy synthesis, high capacity, and suitable operating potential. This review summarizes recent advancements in P3 type KIB cathodes, focusing on structural stability, structure-property correlation, and electrochemical performance, and provides suggestions for further material optimization.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
P. K. Jha, A. Chaupatnaik, K. Jayanthi, S. Franger, R. P. Rao, G. Sai Gautam, A. Navrotsky, P. Barpanda
Summary: This study reports a novel versatile electroactive cathode material Na3.36Co1.32(MoO4)(3) for Li-ion and Na-ion batteries, which exhibits high stability and ionic conductivity. It can function as a high-voltage insertion cathode and has a solid-solution redox mechanism involving Co3+/Co2+ redox centres.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Electrochemistry
Akihisa Tsuchimoto, Masashi Okubo, Atsuo Yamada
Summary: To improve the cycle performance and energy efficiency of Li-rich cathode materials with higher energy density and oxygen redox activity, it is necessary to optimize the conditions such as excess lithium, transition metal species, and cutoff voltage. This study analyzed the dominant factors in the energy density of Li-rich cathode materials by using machine learning prediction models based on well-controlled experimental data. The results showed that choosing a moderate amount of excess lithium and increasing the cobalt contents are keys to achieving high energy density in long-term cycles.
Article
Chemistry, Physical
Atsuo Yamada, Atsushi Kitada, Seongjae Ko, Risa Ikeya, Yuki Yamada
Summary: Highly concentrated aqueous electrolytes have been developed by mixing two or more salts, leading to the discovery of a room-temperature Na-salt eutectic dihydrate melt with a wide potential window. The dihydrate melt enables reversible insertion/desertion of Na-ions into/from compounds located far beyond the stable potential windows of conventional aqueous electrolytes.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
K. Jayanthi, Shubham Lochab, Prabeer Barpanda, Alexandra Navrotsky
Summary: Mixed phosphates have been studied as cathode materials for sodium-ion batteries. High-temperature oxide melt solution calorimetry was used to establish the relationship between thermodynamic phase stability and capacity. The order of thermodynamic phase stability is Na4Mn3(PO4)(2)P2O7 > Na4Fe3(PO4)(2)P2O7 > Na4Co3(PO4)(2)P2O7 > Na4Ni3(PO4)(2)P2O7. Thermodynamic studies provide guidelines for selecting potential cathode materials.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Inorganic & Nuclear
Deepa Singh, Shashwat Singh, Ponnappa Kechanda Prasanna, Rajeev Kumar Rai, Prae Chirawatkul, Sudip Chakraborty, Maximilian Fichtner, Prabeer Barpanda
Summary: ZnCo2(PO4)(2), a zinc-substituted cobalt phosphate synthesized using a low-cost solution combustion route, exhibited efficient oxygen evolution and reduction activities. The crystal structure of ZnCo2(PO4)(2) consists of distorted cobalt and zinc trigonal bipyramids, which allow it to function as a robust bifunctional catalyst comparable to precious metal catalysts. This research provides valuable insights for the development of highly efficient and stable electrocatalysts for metal-air batteries.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Deepa Singh, Yang Hu, Sher Singh Meena, Rishikesh Vengarathody, Maximilian Fichtner, Prabeer Barpanda
Summary: This study explores the use of iron-based fluorphosphate as a cathode for zinc-ion batteries, which can reversibly intercalate zinc ions and has the advantage of low cost.
CHEMICAL COMMUNICATIONS
(2023)
