共查询到20条相似文献,搜索用时 31 毫秒
1.
Zhengbo Liu Xijun Xu Prof. Dr. Shaomin Ji Liyan Zeng Dechao Zhang Prof. Dr. Jun Liu 《Chemistry (Weinheim an der Bergstrasse, Germany)》2020,26(35):7747-7766
Sodium-ion batteries (SIBs) have attracted much attention due to their abundance, easy accessibility, and low cost. All of these advantages make them potential candidates for large-scale energy storage. The P2-type layered transition-metal oxides (NaxTMO2; TM=Mn, Co, Ni, Ti, Fe, V, Cr, and a mixture of multiple elements) exhibit good Na+ ion conductivity and structural stability, which make them an excellent choice for the cathode materials of SIBs. Herein, the structural evolution, anionic redox reaction, some challenges, and recent progress of NaxTMO2 cathodes for SIBs are reviewed and summarized. Moreover, a detailed understanding of the relationship of chemical components, structures, phase compositions, and electrochemical performance is presented. This Review aims to provide a reference for the development of P2-type layered transition-metal oxide cathode materials for SIBs. 相似文献
2.
Xiangsi Liu Wenhua Zuo Bizhu Zheng Yuxuan Xiang Ke Zhou Zhumei Xiao Peizhao Shan Jingwen Shi Qi Li Guiming Zhong Riqiang Fu Yong Yang 《Angewandte Chemie (International ed. in English)》2019,58(50):18086-18095
Sodium layered P2‐stacking Na0.67MnO2 materials have shown great promise for sodium‐ion batteries. However, the undesired Jahn–Teller effect of the Mn4+/Mn3+ redox couple and multiple biphasic structural transitions during charge/discharge of the materials lead to anisotropic structure expansion and rapid capacity decay. Herein, by introducing abundant Al into the transition‐metal layers to decrease the number of Mn3+, we obtain the low cost pure P2‐type Na0.67AlxMn1?xO2 (x=0.05, 0.1 and 0.2) materials with high structural stability and promising performance. The Al‐doping effect on the long/short range structural evolutions and electrochemical performances is further investigated by combining in situ synchrotron XRD and solid‐state NMR techniques. Our results reveal that Al‐doping alleviates the phase transformations thus giving rise to better cycling life, and leads to a larger spacing of Na+ layer thus producing a remarkable rate capability of 96 mAh g‐1 at 1200 mA g‐1. 相似文献
3.
Xiangsi Liu Wenhua Zuo Bizhu Zheng Yuxuan Xiang Ke Zhou Zhumei Xiao Peizhao Shan Jingwen Shi Qi Li Guiming Zhong Riqiang Fu Yong Yang 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(50):18254-18263
Sodium layered P2‐stacking Na0.67MnO2 materials have shown great promise for sodium‐ion batteries. However, the undesired Jahn–Teller effect of the Mn4+/Mn3+ redox couple and multiple biphasic structural transitions during charge/discharge of the materials lead to anisotropic structure expansion and rapid capacity decay. Herein, by introducing abundant Al into the transition‐metal layers to decrease the number of Mn3+, we obtain the low cost pure P2‐type Na0.67AlxMn1?xO2 (x=0.05, 0.1 and 0.2) materials with high structural stability and promising performance. The Al‐doping effect on the long/short range structural evolutions and electrochemical performances is further investigated by combining in situ synchrotron XRD and solid‐state NMR techniques. Our results reveal that Al‐doping alleviates the phase transformations thus giving rise to better cycling life, and leads to a larger spacing of Na+ layer thus producing a remarkable rate capability of 96 mAh g‐1 at 1200 mA g‐1. 相似文献
4.
Ting Jin Peng‐Fei Wang Qin‐Chao Wang Kunjie Zhu Tao Deng Jiaxun Zhang Wei Zhang Xiao‐Qing Yang Lifang Jiao Chunsheng Wang 《Angewandte Chemie (International ed. in English)》2020,59(34):14511-14516
P2‐type layered oxides suffer from an ordered Na+/vacancy arrangement and P2→O2/OP4 phase transitions, leading them to exhibit multiple voltage plateaus upon Na+ extraction/insertion. The deficient sodium in the P2‐type cathode easily induces the bad structural stability at deep desodiation states and limited reversible capacity during Na+ de/insertion. These drawbacks cause poor rate capability and fast capacity decay in most P2‐type layered oxides. To address these challenges, a novel high sodium content (0.85) and plateau‐free P2‐type cathode‐Na0.85Li0.12Ni0.22Mn0.66O2 (P2‐NLNMO) was developed. The complete solid‐solution reaction over a wide voltage range ensures both fast Na+ mobility (10?11 to 10?10 cm2 s?1) and small volume variation (1.7 %). The high sodium content P2‐NLNMO exhibits a higher reversible capacity of 123.4 mA h g?1, superior rate capability of 79.3 mA h g?1 at 20 C, and 85.4 % capacity retention after 500 cycles at 5 C. The sufficient Na and complete solid‐solution reaction are critical to realizing high‐performance P2‐type cathodes for sodium‐ion batteries. 相似文献
5.
Dr. Yongjin Fang Dr. Xin-Yao Yu Prof. Xiong Wen Lou 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2017,129(21):5895-5899
Layered metal oxides have attracted increasing attention as cathode materials for sodium-ion batteries (SIBs). However, the application of such cathode materials is still hindered by their poor rate capability and cycling stability. Here, a facile self-templated strategy is developed to synthesize uniform P2-Na0.7CoO2 microspheres. Due to the unique microsphere structure, the contact area of the active material with electrolyte is minimized. As expected, the P2-Na0.7CoO2 microspheres exhibit enhanced electrochemical performance for sodium storage in terms of high reversible capacity (125 mAh g−1 at 5 mA g−1), superior rate capability and long cycle life (86 % capacity retention over 300 cycles). Importantly, the synthesis method can be easily extended to synthesize other layered metal oxide (P2-Na0.7MnO2 and O3-NaFeO2) microspheres. 相似文献
6.
Peilei Yang Chaoyang Zhang Malin Li Xu Yang Prof. Dr. Chunzhong Wang Dr. Xiaofei Bie Prof. Dr. Yingjin Wei Prof. Dr. Gang Chen Prof. Dr. Fei Du 《Chemphyschem》2015,16(16):3408-3412
As a promising positive electrode material for sodium‐ion batteries (SIBs), layered sodium oxides have attracted considerable attention in recent years. In this work, stoichiometric P2‐phase NaCo0.5Mn0.5O2 was prepared through the conventional solid‐state reaction, and its structural and physical properties were studied in terms of XRD, XPS, and magnetic susceptibility. Furthermore, the P2‐NaCo0.5Mn0.5O2 electrode delivered a discharge capacity of 124.3 mA h g?1 and almost 100 % initial coulombic efficiency over the potential window of 1.5–4.15 V. It also showed good cycle stability, with a reversible capacity and capacity retention reaching approximately 85 mA h g?1 and 99 %, respectively, at the 5 C rate after 100 cycles. Additionally, cyclic voltammetry and ex situ XRD were employed to explain the electrochemical behavior at the different electrochemical stages. Owing to the applicable performances, P2‐NaCo0.5Mn0.5O2 can be considered as a potential positive electrode material for SIBs. 相似文献
7.
Robust SnO2−x Nanoparticle‐Impregnated Carbon Nanofibers with Outstanding Electrochemical Performance for Advanced Sodium‐Ion Batteries 下载免费PDF全文
Dingtao Ma Dr. Yongliang Li Dr. Hongwei Mi Shan Luo Prof. Peixin Zhang Prof. Zhiqun Lin Prof. Jianqing Li Prof. Han Zhang 《Angewandte Chemie (International ed. in English)》2018,57(29):8901-8905
The sluggish sodium reaction kinetics, unstable Sn/Na2O interface, and large volume expansion are major obstacles that impede practical applications of SnO2‐based electrodes for sodium‐ion batteries (SIBs). Herein, we report the crafting of homogeneously confined oxygen‐vacancy‐containing SnO2?x nanoparticles with well‐defined void space in porous carbon nanofibers (denoted SnO2?x/C composites) that address the issues noted above for advanced SIBs. Notably, SnO2?x/C composites can be readily exploited as the working electrode, without need for binders and conductive additives. In contrast to past work, SnO2?x/C composites‐based SIBs show remarkable electrochemical performance, offering high reversible capacity, ultralong cyclic stability, and excellent rate capability. A discharge capacity of 565 mAh g?1 at 1 A g?1 is retained after 2000 cycles. 相似文献
8.
Synthesis and Electrochemical Performance of Spinel LiMn2O4—x(SO4)x Cathode Materials 总被引:1,自引:0,他引:1
IntroductionInrecentyears ,withthedevelopmentofallsortsofcellularphones ,camcorders ,laptopcomputers ,thelithium ionsecondarybatteriesbasedontheuseoflithi um manganese oxideLiMn2 O4 1,2 haveattractedmuchat tention .ButtheLiMn2 O4 cathodematerialhasadisad vantageof… 相似文献
9.
Pahari Debanjana Chowdhury Arghadeep Das Dhrubajyoti Paul Tanmoy Puravankara Sreeraj 《Journal of Solid State Electrochemistry》2023,27(8):2067-2082
Journal of Solid State Electrochemistry - Solid-state synthesis of novel electrode materials of P2-type layered oxides Na0.67Ni0.33-xVxMn0.67O2 (where x = 0, 0.05, and 0.11) for the... 相似文献
10.
Zichao Yan Liang Tang Yangyang Huang Weibo Hua Yong Wang Rong Liu Qinfen Gu Sylvio Indris Shu‐Lei Chou Yunhui Huang Minghong Wu Shi‐Xue Dou 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(5):1426-1430
Low‐cost layered oxides free of Ni and Co are considered to be the most promising cathode materials for future sodium‐ion batteries. Biphasic Na0.78Cu0.27Zn0.06Mn0.67O2 obtained via superficial atomic‐scale P3 intergrowth with P2 phase induced by Zn doping, consisting of inexpensive transition metals, is a promising cathode for sodium‐ion batteries. The P3 phase as a covering layer in this composite shows not only in excellent electrochemical performance but also its tolerance to moisture. The results indicate that partial Zn substitutes can effectively control biphase formation for improving the structural/electrochemical stability as well as the ionic diffusion coefficient. Based on in situ synchrotron X‐ray diffraction coupled with electron‐energy‐loss spectroscopy, a possible Cu2+/3+ redox reaction mechanism has now been revealed. 相似文献
11.
Yao Xiao Yan‐Fang Zhu Wei Xiang Zhen‐Guo Wu Yong‐Chun Li Jing Lai Shi Li Enhui Wang Zu‐Guang Yang Chun‐Liu Xu Ben‐He Zhong Xiao‐Dong Guo 《Angewandte Chemie (International ed. in English)》2020,59(4):1491-1495
Demands for large‐scale energy storage systems have driven the development of layered transition‐metal oxide cathodes for room‐temperature rechargeable sodium ion batteries (SIBs). Now, an abnormal layered‐tunnel heterostructure Na0.44Co0.1Mn0.9O2 cathode material induced by chemical element substitution is reported. By virtue of beneficial synergistic effects, this layered‐tunnel electrode shows outstanding electrochemical performance in sodium half‐cell system and excellent compatibility with hard carbon anode in sodium full‐cell system. The underlying formation process, charge compensation mechanism, phase transition, and sodium‐ion storage electrochemistry are clearly articulated and confirmed through combined analyses of in situ high‐energy X‐ray diffraction and ex situ X‐ray absorption spectroscopy as well as operando X‐ray diffraction. This crystal structure engineering regulation strategy offers a future outlook into advanced cathode materials for SIBs. 相似文献
12.
Recent developments on layered 3d-transtition metal oxide cathode materials for sodium-ion batteries
Sodium-ion batteries (SIBs) are now intensively developed as a cost-effective technology alternative to lithium-ion batteries (LIBs) for large-scale energy storage because of their various advantages such as huge abundance of sodium resources, highly safe and significantly low cost. Among many other cathode materials, layered 3d-transition metal oxides (LTMO-NaxMO2, x ≤ 1 and M = Co, Ni, Mn, Cr, Cu, Fe and V) have gained an enormous interest and attractive attention among researchers because of their low-cost, high energy density and ease of synthesis. In addition, LTMOs offer higher reversible capacities because of relatively lower molecular weights; however, complex phase transformations limit their cycling life. Based on the previous research, it was examined that the crystalline phase of LTMO highly influences the electrochemical performance of SIBs; therefore, this review mainly focuses on the latest advances of various crystalline phases such as P2-type, P3-type, O3-type and biphase/multiphase materials and its strength as well as future prospects and challenges. 相似文献
13.
Electrochemical and Structural Study of Layered P2‐Type Na2/3Ni1/3Mn2/3O2 as Cathode Material for Sodium‐Ion Battery 下载免费PDF全文
Yanfen Wen Dr. Bei Wang Guang Zeng Prof. Kazuhiro Nogita Delai Ye Prof. Lianzhou Wang 《化学:亚洲杂志》2015,10(3):661-666
P2‐type Na2/3Ni1/3Mn2/3O2 was synthesized by a controlled co‐precipitation method followed by a high‐temperature solid‐state reaction and was used as a cathode material for a sodium‐ion battery (SIB). The electrochemical behavior of this layered material was studied and an initial discharge capacity of 151.8 mA h g?1 was achieved in the voltage range of 1.5–3.75 V versus Na+/Na. The retained discharge capacity was found to be 123.5 mA h g?1 after charging/discharging 50 cycles, approximately 81.4 % of the initial discharge capacity. In situ X‐ray diffraction analysis was used to investigate the sodium insertion and extraction mechanism and clearly revealed the reversible structural changes of the P2‐Na2/3Ni1/3Mn2/3O2 and no emergence of the O2‐Ni1/3Mn2/3O2 phase during the cycling test, which is important for designing stable and high‐performance SIB cathode materials. 相似文献
14.
Peng‐Fei Wang Hanshen Xin Tong‐Tong Zuo Dr. Qinghao Li Dr. Xinan Yang Dr. Ya‐Xia Yin Prof. Xike Gao Prof. Xiqian Yu Prof. Yu‐Guo Guo 《Angewandte Chemie (International ed. in English)》2018,57(27):8178-8183
Layered O3‐type sodium oxides (NaMO2, M=transition metal) commonly exhibit an O3–P3 phase transition, which occurs at a low redox voltage of about 3 V (vs. Na+/Na) during sodium extraction and insertion, with the result that almost 50 % of their total capacity lies at this low voltage region, and they possess insufficient energy density as cathode materials for sodium‐ion batteries (NIBs). Therefore, development of high‐voltage O3‐type cathodes remains challenging because it is difficult to raise the phase‐transition voltage by reasonable structure modulation. A new example of O3‐type sodium insertion materials is presented for use in NIBs. The designed O3‐type Na0.7Ni0.35Sn0.65O2 material displays a highest redox potential of 3.7 V (vs. Na+/Na) among the reported O3‐type materials based on the Ni2+/Ni3+ couple, by virtue of its increased Ni?O bond ionicity through reduced orbital overlap between transition metals and oxygen within the MO2 slabs. This study provides an orbital‐level understanding of the operating potentials of the nominal redox couples for O3‐NaMO2 cathodes. The strategy described could be used to tailor electrodes for improved performance. 相似文献
15.
A novel layered ternary material K0.67Ni0.17Co0.17Mn0.66O2 has been fabricated via a co-precipitation assisted solid-phase method and further evaluated as a cathode for potassium-ion batteries for the first time. Highly reversible K+ intercalation/deintercalation is demonstrated in this material. It delivers a reversible capacity of 76.5 mAh/g with average voltage of 3.1 V and shows good cycling performance with capacity retention of 87% after 100 cycles at 20 mA/g. This work may give a new insight into developing cathode materials for potassium-ion batteries. 相似文献
16.
An O3‐type Oxide with Low Sodium Content as the Phase‐Transition‐Free Anode for Sodium‐Ion Batteries 下载免费PDF全文
Chenglong Zhao Dr. Maxim Avdeev Prof. Liquan Chen Prof. Yong‐Sheng Hu 《Angewandte Chemie (International ed. in English)》2018,57(24):7056-7060
Layered transition metal oxides NaxMO2 (M=transition metal) with P2 or O3 structure have attracted attention in sodium‐ion batteries (NIBs). A universal law is found to distinguish structural competition between P2 and O3 types based on the ratio of interlayer distances of the alkali metal layer d(O‐Na‐O) and transition‐metal layer d(O‐M‐O). The ratio of about 1.62 can be used as an indicator. O3‐type Na0.66Mg0.34Ti0.66O2 oxide is prepared as a stable anode for NIBs, in which the low Na‐content (ca. 0.66) usually undergoes a P2‐type structure with respect to NaxMO2. This material delivers an available capacity of about 98 mAh g?1 within a voltage range of 0.4–2.0 V and exhibits a better cycling stability (ca. 94.2 % of capacity retention after 128 cycles). In situ X‐ray diffraction reveals a single‐phase reaction in the discharge–charge process, which is different from the common phase transitions reported in O3‐type electrodes, ensuring long‐term cycling stability. 相似文献
17.
《中国化学快报》2020,31(9):2167-2176
As one of the most promising secondary batteries in large-scale energy storage, sodium ion batteries (SIBs) have attracted wide attention due to the abundant raw materials and low cost. Layered transition metal oxides are one kind of popular cathode material candidates because of its easy synthesis and large theoretical specific capacity. Yet, the most common P2 and O3 phases show distinct structural characteristics respectively. O3 phase can serve as a sodium reservoir, but it usually suffers from serious phase transition and sluggish kinetics. For the P2 phase, it allows the fast sodium ion migration in the bulk and the structure can maintain stable, but it is lack of sodium, showing a great negative effect on Coulombic efficiency in full cell. Thus, single phase structure almost cannot achieve satisfied comprehensive sodium storage performances. Under these circumstances, exploiting novel multiphase cathodes showing synergetic effect may give solution to these problems. In this review, we summarize the recent development of multiphase layered transition metal oxide cathodes of SIBs, analyze the mechanism and prospect the future potential research directions. 相似文献
18.
《中国化学》2017,35(12):1853-1860
Recent success and application of the percolation theory have highlighted cation‐disordered Li‐rich oxides as high energy density cathode materials. Generally, this kind of cathode materials suffer from low cycling stability and rate performance. Doped Ti4+ ions can improve the long‐term cycling stability and rate performance of the Li‐rich oxides materials with obvious capacity fading. The electrochemical performance in Lix Ni2−4x /3Sbx /3O2 can benefit a lot from the nanohighway, which is a kind of nanoscale 0‐TM diffusion channels in the transition metal layer and provides low diffusion barrier pathways for the lithium diffusion. In this work, the doping effect of Ti on the structure and electrochemical properties in Li1.15Ni0 .47Sb0 .38O2 is studied. The Ti‐stabilized Li1.15−x Ni0.47Tix Sb0 .38O2 (x =0, 0.01, 0.03 and 0.05) have been prepared by a solid‐state method and the Li1.03Ni0 .47Sb0 .38Ti0 .03O2 sample exhibits outstanding electrochemical performance with a larger reversible discharge capacity, better rate capability and cyclability. Synchrotron‐based XANES , combined with ab initio calculations in the multiple‐scattering framework, reveals the Ti ions have been doped into the Li‐site in the lithium layer and formed a distortion TiO6 octahedron. This TiO6 local configuration in the lithium can keep the stability of nanohighway in the electrochemical process. In particular, the Li1.03Ni0 .47Sb0 .38Ti0 .03O2 compound can deliver a discharge capacities 132 and 76 mAh /g at 0.2 and 5 C, respectivly. About 86% capacity retention occurs at 1 C rate after 500 cycles. This work suggests capacity fading in the oxide cathode materials can be suppressed to construct and stabilize the nanohighway. 相似文献
19.
Ting Jin Dr. Peng-Fei Wang Dr. Qin-Chao Wang Kunjie Zhu Tao Deng Jiaxun Zhang Prof. Wei Zhang Prof. Xiao-Qing Yang Prof. Lifang Jiao Prof. Chunsheng Wang 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2020,132(34):14619-14624
P2-type layered oxides suffer from an ordered Na+/vacancy arrangement and P2→O2/OP4 phase transitions, leading them to exhibit multiple voltage plateaus upon Na+ extraction/insertion. The deficient sodium in the P2-type cathode easily induces the bad structural stability at deep desodiation states and limited reversible capacity during Na+ de/insertion. These drawbacks cause poor rate capability and fast capacity decay in most P2-type layered oxides. To address these challenges, a novel high sodium content (0.85) and plateau-free P2-type cathode-Na0.85Li0.12Ni0.22Mn0.66O2 (P2-NLNMO) was developed. The complete solid-solution reaction over a wide voltage range ensures both fast Na+ mobility (10−11 to 10−10 cm2 s−1) and small volume variation (1.7 %). The high sodium content P2-NLNMO exhibits a higher reversible capacity of 123.4 mA h g−1, superior rate capability of 79.3 mA h g−1 at 20 C, and 85.4 % capacity retention after 500 cycles at 5 C. The sufficient Na and complete solid-solution reaction are critical to realizing high-performance P2-type cathodes for sodium-ion batteries. 相似文献
20.
Takao Kokubu Yuya Oaki Dr. Hiroaki Uchiyama Dr. Eiji Hosono Dr. Haoshen Zhou Dr. Hiroaki Imai Prof. Dr. 《化学:亚洲杂志》2010,5(4):792-798
We have synthesized spinel type cobalt‐doped LiMn2O4 (LiMn2?yCoyO4, 0≤y≤0.367), a cathode material for a lithium‐ion battery, with hierarchical sponge structures via the cobalt‐doped MnCO3 (Mn1‐xCoxCO3, 0≤x≤0.204) formed in an agar gel matrix. Biomimetic crystal growth in the gel matrix facilitates the generation of both an homogeneous solid solution and the hierarchical structures under ambient condition. The controlled composition and the hierarchical structure of the cobalt‐doped MnCO3 precursor played an important role in the formation of the cobalt‐doped LiMn2O4. The charge–discharge reversible stability of the resultant LiMn1.947Co0.053O4 was improved to ca. 12 % loss of the discharge capacity after 100 cycles, while pure LiMn2O4 showed 24 % loss of the discharge capacity after 100 cycles. The parallel control of the hierarchical structure and the composition in the precursor material through a biomimetic approach, promises the development of functional materials under mild conditions. 相似文献