Article
Chemistry, Physical
Eun Ju Jeon, Annelise Jean-Fulcrand, Arno Kwade, Georg Garnweitner
Summary: Polymer-based hybrid electrolytes (HEs) have high ionic conductivity and good mechanical strength, making them suitable for safe lithium metal anode batteries. A cross-linked polymer-based HE with high ionic conductivity was developed, integrating LLZO particles and capable of operating at room temperature, which can promote the development of safe all-solid-state batteries.
Article
Chemistry, Physical
Ying Ji, Yu -Hang Zhang, Fa-Nian Shi, Lin -Nan Zhang
Summary: The low ionic conductivity and poor dimensional stability of PEO-based solid electrolytes have limited their development. A cross-linking structure with active soft chains doped with rigid segments was designed and prepared to reconcile the contradiction between electrochemical performance and mechanical strength. The obtained solid film showed high ionic conductivity and a favorable migration mechanism. The molecular structure design achieved a combination of flexibility and strength, and the compact PTP-SPE inhibited the formation of lithium dendrites.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Ruonan Xu, Jingming Yao, Ziqi Zhang, Lin Li, Zhenyu Wang, Dawei Song, Xinlin Yan, Chuang Yu, Long Zhang
Summary: This paper reports on a novel halide-based deep eutectic solid electrolyte prepared by a facile ball milling method, which has a viscous feature and can change the solid-solid contacts for fast ion transport. The optimized electrolyte exhibits low activation energy and high ionic conductivity, making it one of the highest values among various electrolytes. When integrated with active materials to form a composite cathode, the electrolyte shows significantly enhanced ionic conductivity.
Article
Nanoscience & Nanotechnology
Shouhu Li, Pengtao Qiu, Jiaxin Kang, Yiming Ma, Yichun Zhang, Yigang Yan, Torben R. Jensen, Yanhui Guo, Jie Zhang, Xuenian Chen
Summary: Solid-state electrolytes based on closo-decaborates are of interest due to their impressive room-temperature ionic conductivity, stability, and flexibility. Iodine substitution in closo-decaborates was found to increase thermal decomposition temperature. Li-2[B10I10] exhibits enhanced ionic conductivity compared to the parent compound, showing potential for high-temperature battery applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Inorganic & Nuclear
Suyeon Han, Jung Yong Seo, Woon Bae Park, S. J. Richard Prabakar, Sangwon Park, Kee-Sun Sohn, Myoungho Pyo
Summary: Na3MX4 and its doped analogues show high ionic conductivity at room temperature, with Na-3(W0.2Si0.2Sb0.6)S-4 exhibiting the highest conductivity. The type of dopant and structural defects also affect the diffusion of Na+. The use of Na3SbS4 as an interlayer in a solid-state cell demonstrates good compatibility.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Nanoscience & Nanotechnology
Yichun Zhang, Pengtao Qiu, Jingfeng Zheng, Xinwei Chen, Xi-Meng Chen, Shouhu Li, Chenchen Ji, Yiying Wu, Xuenian Chen
Summary: The synthesis of new KB3H8•nNH(3)B(3)H(7) (n = 0.5 and 1) complexes has led to the discovery of solid-state K-ion conductors with high ionic conductivity at a certain temperature, providing feasibility for the design and development of all-solid-state potassium batteries.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Chemistry, Physical
Yashuang Qiu, Jing Xu
Summary: Room temperature sodium-sulfur (Na-S) batteries are a promising energy storage system due to their high energy density and low cost. However, the use of organic liquid electrolytes in Na-S cells leads to issues such as polysulfide shuttling, uncontrollable Na dendrite growth, and safety concerns. Solid-state electrolytes have been proposed as a solution to these problems, but their practical application is still challenging due to poor interfacial compatibility and ionic conductivity issues. This paper provides a comprehensive review of solid-state Na-S batteries and discusses different types of solid-state electrolytes. The development of high-performance solid-state electrolytes is envisioned to improve the cycling stability of room temperature Na-S cells.
Article
Chemistry, Physical
Hiroyuki Usui, Yasuhiro Domi, Shin-ichiro Izaki, Akira Nasu, Atsushi Sakuda, Akitoshi Hayashi, Hiroki Sakaguchi
Summary: This study successfully prepared solid-state batteries composed of TiO2 anodes and a Li3BO3-Li2SO4-Li2CO3 solid electrolyte by room-temperature pressing. The batteries operated at 90 degrees C and showed reversible capacity. The doping of Nb or Ta into TiO2 significantly improved the anode's rate capability.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Pengfei Zhou, Kaitong Sun, Shunping Ji, Zirui Zhao, Ying Fu, Junchao Xia, Si Wu, Yinghao Zhu, Kwun Nam Hui, Hai-Feng Li
Summary: As a typical solid-state electrolyte, Na1+xZr2SixP3-xO12 NASICONs provide a platform for solid-state batteries with higher safety and energy densities. Improving ionic conductivity and reducing interfacial resistance between electrolytes and cathode materials are crucial for higher-efficiency solid-state batteries, which usually require high craftsmanship and high-pressure equipment. This study introduces an effective additive, MgF2, in synthesizing NASICONs, resulting in electrolytes with improved performance and fewer defects.
MATERIALS TODAY ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Jieren Shao, Huiling Ao, Lei Qin, Jocelyn Elgin, Curtis E. Moore, Yehia Khalifa, Songwei Zhang, Yiying Wu
Summary: Developing K-ion conducting solid-state electrolytes (SSEs) is crucial for the safe implementation of potassium batteries. In this study, a chalcogenide-based potassium ion SSE, K3SbSe4, is reported, which exhibits a trigonal structure at room temperature and undergoes a trigonal-to-cubic phase transition at a low temperature. Substituting potassium with barium leads to an expansion of lattice parameters and an increase in conductivity. The novel SSE is successfully used in a K-O-2 battery, providing effective protection for the potassium metal anode against oxygen corrosion.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Applied
Kaiyong Tuo, Fusheng Yin, Fanghui Mi, Chunwen Sun
Summary: All-solid-state batteries (ASSBs) with inorganic solid-state-electrolytes (SSEs) are a promising option for next-generation energy storage. The new halide superionic conductor Li2,XHf1_XInXCl6 exhibits high ionic conductivity and stability at high voltage, contributing to improved battery performance.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Fumika Tsuji, Akira Nasu, Atsushi Sakuda, Masahiro Tatsumisago, Akitoshi Hayashi
Summary: In this study, Na3PS4 electrolytes with partial substitution of P5+ with W6+ were investigated for all-solid-state sodium batteries. The Na2.85P0.85W0.15S4 electrolyte exhibited higher ionic conductivity and showed potential for improving battery performance.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Hiroyuki Usui, Yasuhiro Domi, Shin-ichiro Izaki, Akira Nasu, Atsushi Sakuda, Akitoshi Hayashi, Hiroki Sakaguchi
Summary: This study attempted to prepare solid-state batteries consisting of TiO2 anodes and a Li3BO3???Li2SO4???Li2CO3 solid electrolyte through room-temperature pressing without any sintering process. The solid-state batteries successfully operated at 90°C, showing reversible capacity in the first cycles. The doping of Nb or Ta into TiO2 significantly improved the rate capability and reduced the charge-transfer resistance.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Multidisciplinary Sciences
Xinxin Wang, Jingjing Chen, Dajian Wang, Zhiyong Mao
Summary: The authors proposed an ultrasound solid welding strategy to improve the contact between Na metal and Na3Zr2Si2PO12 (NZSP) inorganic solid electrolyte, leading to stable Na plating/stripping behavior and lower interfacial impedance. This strategy was also demonstrated to achieve a capacity retention of almost 90% after 900 cycles at room temperature in a Na|NZSP | Na3V2(PO4)(3) full coin cell configuration.
NATURE COMMUNICATIONS
(2021)
Article
Engineering, Multidisciplinary
Ling Gao, YuLin Xie, Yan Tong, Miao Xu, JiaLe You, HuiPing Wei, XiangXiang Yu, SiQi Xu, Yi Zhang, Yong Che, Ya Tang, Kota Suzuki, Ryoji Kanno, GuoWei Zhao
Summary: Al-doped 651I can reduce activation energy and increase ionic conductivity, leading to enhanced performance in all-solid-state batteries. The Al-doped samples showed smaller lattice parameters and higher ionic conductivity compared to non-doped samples, with the highest ionic conductivity reaching 2.6x10(-5) S cm(-1).
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2023)
Article
Nanoscience & Nanotechnology
Eunho Cha, Jong Hyuk Yun, Do Kyung Kim
Summary: This article discusses the issues and challenges behind the large-scale production of lithium-sulfur batteries, and highlights the recent advances in the development of lithium-sulfur pouch cells achieved through polysulfide regulation or anode modification.
Article
Materials Science, Ceramics
Boo Kyung Kim, Jong Hyuk Yun, Wook Ki Jung, Chek Hai Lim, Yu Zhang, Do Kyung Kim
Summary: The influence of grain size on the mechanical properties of transparent yttria-stabilized zirconia was investigated, and the mechanical properties and transmittance were improved by controlling the grain size and relative density through a two-step sintering process.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Polymer Science
Wonseok Lee, Eunseok Heo, Hye Been Koo, In Cho, Jae-Byum Chang
Summary: This study demonstrates a general strategy of covalent bond-based and detachable adhesion by incorporating amine-rich proteins in various hydrogels and inducing the interfacial crosslinking of the hydrogels using a protein-crosslinking agent. The adhesion offers topological adhesion and can reach a strong adhesion energy of approximate to 750 J m(-2). The chemistry of the adhesion is characterized and the inclusion of proteins inside the hydrogels does not alter the hydrogels' properties.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Electrochemistry
Sruthy Subash, S. Udhayakumar, Lakshmanan Kumaresan, L. N. Patro, V. Kumaran, E. Senthil Kumar, M. Navaneethan, Do Kyung Kim, K. Kamala Bharathi
Summary: The present study focuses on the preparation and characterization of LiFe5O8 (LFO) thin films for all-solid thin film Li-ion batteries. The LFO thin films showed an ordered alpha-phase with an inverse spinel structure. The electrochemical properties, Li ion dynamics, and conducting processes were investigated using various techniques. The results indicate that the LFO thin films can be used as potential anode materials for Co and Ni free all-solid thin film Li-ion batteries.
ELECTROCHIMICA ACTA
(2023)
Article
Materials Science, Ceramics
Hyun-Ae Cha, Kyung-Chan Shin, Hee-Jin Son, Byung-Dong Hahn, Cheol-Woo Ahn, Jong-Jin Choi, Do Kyung Kim
Summary: This study proposes methods to achieve the desired size and size distribution of highly dense spherical granules by investigating the effect of slurry conditions. The slurry was spray-dried to prepare highly dense spherical granules with a solid content of over 77 wt%. Prolonged deagglomeration time and optimal slurry conditions led to reduced granule sizes, narrow size distributions, and improved dispersibility.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Chemistry, Physical
K. Kamala Bharathi, Rubha Ponraj, Jong Hyuk Yun, Do Kyung Kim
Summary: This work explores the electrochemical properties, Li ion dynamics and intercalation chemistry in Li4WO5 bulk material. X-ray diffraction and Raman spectra studies confirm the formation of Li4WO5 in orthorhombic structure. Electrochemical charge discharge studies reveal an increase in discharge and charge capacity values after 100 cycles, reaching 575 mAh/g and 549 mAh/g respectively with 99% Columbic efficiency. The in-situ XRD measurement confirms the stable structure of Li4WO5 with slight distortion in (531) plane during electrochemical cycling. Li4WO5 shows potential as an anode material for high performance LIB's.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Electrochemistry
Joo-Hyung Kim, Hye-Ji Eun, Jihyun Jang, Suyoon Eom, Jou-Hyeon Ahn, Mihye Wu, Jungdon Suk, San Moon
Summary: Lithium-sulfur (Li-S) batteries have attracted research attention due to their high energy density and economic feasibility, although commercialization has been challenging. The dissolution of lithium polysulfide and low electronic conductivity are major barriers. This study successfully designed and manufactured three types of sulfur nanocomposites and identified the mechanism of polysulfide generation. By controlling the monoclinic sulfur, the reaction that leads to high-order polysulfide generation was suppressed, suggesting a strategy for maximizing cycle stability in next-generation Li-S batteries.
Article
Chemistry, Multidisciplinary
Joo-Hyung Kim, Hye-Ji Eun, Su Hwan Jeong, Jihyun Jang, Mihye Wu, Jou-Hyeon Ahn, Jungdon Suk, San Moon
Summary: This study reports a sulfur-infiltrated carbon cathode material with a spherical morphology and conductive polymer coating, which was produced via a facile polymerization process. The thin double layer composed of carbon and poly(3,4-ethylenedioxythiophene) provides sufficient space for sulfur storage and effectively prevents the elution of polysulfide during continuous cycling, leading to improved electrochemical performance. Sulfur-infiltrated hollow carbon spheres with a conductive polymer layer demonstrate stable cycle life and reduced internal resistance.
Article
Materials Science, Multidisciplinary
Nibagani Naresh, Suyoon Eom, Sang Jun Lee, Su Hwan Jeong, Ji-Won Jung, Young Hwa Jung, Joo-Hyung Kim
Summary: In this study, a Co-doped dMO composite with reduced graphene oxide (GC-dMO) is developed using a simple cost-effective hydrothermal method. The GC-dMO cathode exhibits an excellent capacity of 302 mAh g(-1) at a current density of 100 mA g(-1) after 100 cycles as compared with the dMO cathode (159 mAh g(-1)). The excellent electrochemical performance of the GC-dMO cathode owing to Co-doping and graphene oxide sheets enhances the interlayer gap and disorderness, and maintains structural stability, which facilitates the easy reverse intercalation and de-intercalation of Zn2+ ions and H2O molecules.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Materials Science, Ceramics
Jung Hoon Kong, Seung Yong Lee, Young Il Son, Do Kyung Kim
Summary: A carbon fiber-reinforced silicon carbide (Cf/SiC) composite was fabricated with ZrB2 via the liquid silicon infiltration (LSI) method. The addition of ZrB2 reduced weight loss and linear ablation rate, while the synergistic effect of ZrB2 and SiC reinforced the ablation properties. ZrB2 also reduced the amount of residual silicon, which was detrimental to the mechanical properties of Cf/SiC composite.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Suyoon Eom, Su Hwan Jeong, Sang Jun Lee, Young Hwa Jung, Joo-Hyung Kim
Summary: This study proposes an effective strategy to inhibit harmful phase transition and Jahn-Teller distortion in Mn-based layered oxide cathodes for sodium-ion batteries using Al substitution. The Al-substituted electrode exhibits excellent cycling stability and higher Mn4 content compared to the bare electrode, confirming the improved electrochemical performance.
MATERIALS TODAY ENERGY
(2023)
Article
Green & Sustainable Science & Technology
Rubha Ponraj, Xinchen Dai, Dong Gyu Kim, Do Kyung Kim, Dong Jun Kim
Summary: Anode-free lithium metal batteries (AFLMBs) have the potential to enhance the energy density of lithium-ion batteries by eliminating the need for conventional graphite anodes. However, AFLMBs face challenges such as inferior stability of the solid electrolyte interphase (SEI) layer and inhomogeneous lithium deposition. By coating the copper current collector with carbonized polydopamine (CPD), highly efficient and reversible lithium plating and stripping processes can be achieved, leading to improved cycling stability. The anode-free full cell, composed of CPD-coated copper current collector and LiFePO4 cathode, demonstrates significantly enhanced electrochemical performance.
ADVANCED ENERGY AND SUSTAINABILITY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Hye Been Koo, Eunseok Heo, In Cho, Sun Hong Kim, Jiheong Kang, Jae-Byum Chang
Summary: This work demonstrates a human hand-inspired all-hydrogel gripper that can bear more than 47.6 times its own weight. The gripper is made of two hydrogels: P(MAAm-co-MAAc) and PNIPAM. By taking advantage of the difference in the kinetics of the stiff-soft transition of P(MAAm-co-MAAc) hydrogels and the swelling-shrinking transition of PNIPAM hydrogels, this gripper can be switched between its stiff-bent and stiff-stretched states by simply changing the temperature. This work also introduces a new hydrogel adhesion method, termed split-brushing adhesion, which achieves higher adhesion energy compared to existing topological adhesion methods.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Physical
Haeseong Im, Eunseok Heo, Dae-Hyeon Song, Jeongwon Park, Hyeonbin Park, Kibum Kang, Jae-Byum Chang
Summary: This study demonstrates a new technique for fabricating curved hydrogels with chemical patterns on their surfaces without the need for two-photon lithography. By applying this technique to stretchable hydrogels, the resolution of patterns can be improved, the local stretchability of the hydrogels can be modified, and perfusable microchannels with chemical patterns can be created.
