JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2016
·Vol. 20
·期 8
·2331-2335
·
IF 2.327
Han Jin,Niu Yubin,Zhang Yan,Jiang Jian,Bao Shu-juan,Xu Maowen
Novel O3-type Na 0.8 Ni 0.6 Sb 0.4 O 2 is successfully fabricated via a solid-state method and further firstly used as cathode material for sodium-ion batteries (SIBs). The as-obtained material delivers a high capacity of ~107.3 mAh g −1 in the voltage range of 2–4.5 V with two discharge plateaus at 3.24 and 3.62 V, and exhibits a good capacity retention (98.5 mAh g −1 at the rate of 0.2 C after 100 cycles).
研究领域:
电化学
·
材料科学
·
能源存储
·
无机化学
·
电池技术
✓ 已验证
DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-12
·
IF 15.7
Qiu Yixiao,Liu Qinzhe,Tao Jiangwei,Yan Pu,Tan Guangsu,Liu Fanjun,Wang Danyu,Yu Na,Zhang Nian,Yang Yong,Wang Weiwei,Wang Yuzhu,Cao Kecheng,Wang Jingyang,Lun Zhengyan,Xu Chao
The pursuit of advanced battery chemistries with enhanced energy density necessitates the exploration of new materials, a process intricately tied to synthesis science. Despite the promise of O3-type sodium oxygen anionic redox cathodes as high-capacity materials, their development has been severely hindered by a lack of understanding regarding synthetic mechanisms. Here, we elucidate the pivotal role of atmospheric conditions, particularly oxygen content, in the synthesis of such materials by synchronizing multiple operando characterization techniques to monitor changes in both solid and gaseous components. Utilizing the O3-Na[Li 1/3 Mn 2/3 ]O 2 system as a model, we demonstrate that a low oxygen environment is essential and the reaction is highly complex as evidenced by multiple oxygen uptake and release processes, resulting in numerous intermediates. This behavior contrasts sharply with Na-Mn-O and Li-Mn-O ternary systems which show less significant oxygen dynamics, underscoring the unique reaction mechanism within the Na-Li-Mn-O system. We further adopt a dynamic controlled atmosphere approach to modulate oxygen concentration and demonstrate successful synthesis of Ti-substituted NaLi 1/3 Mn 2/3- x Ti x O 2 materials, all exhibiting capacities surpassing 190 mAh g -1 . Our findings highlight the importance of the atmospheric conditions for the synthesis of oxide cathode materials and these fundamental insights unlock avenues for developing novel high-energy-density sodium-ion battery chemistries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Physical Chemistry C
·
2020
·
IF 4.189
Ningyun Hong,Kang Wu,Zhengjun Peng,Zenghu Zhu,Guofeng Jia,Min Wang
O3-type layered transition metal oxides have shown great promise as high-capacity cathode materials for sodium-ion batteries in large-scale energy storage, due to their low cost and the abundance of sodium resources. However, the limited interlayer spacing and the unstable structure of the O3 phase result in inferior cycling stability and poor rate capability, which could even hinder their practical application process. Hereby, we present that doping with nonelectrochemically active Al in NaAlx(Ni0.5Mn0.5)1–xO2 (x = 0, 0.02, 0.06, 0.1) can effectively alleviate these issues. Among these materials, materials with x = 0.02 exhibited the best electrochemical behavior with improved capacity and better cycling property than other materials. Specifically, the discharge capacity of a 2 mol % Al-doped material possesses 63.2% capacity retention after 200 cycles at a current density of 240 mA g–1, which is 21.4% higher than that in NaNi0.5Mn0.5O2. In addition, a 2 mol % Al-doped electrode also shows outstanding rate capability and delivers 90 mAh g–1 at a high rate of 480 mA g–1, compared to only 67 mAh g–1 for that of the pristine one. X-ray diffraction (XRD), cyclic voltammetry (CV), and galvanostatic intermittent titration technique (GITT) analysis elucidated that the introduced Al dopant can effectively improve the structural stability and promote kinetics of Na+ diffusion mobility. Therefore, the strategy of doping inactive aluminum elements for optimizing the electrochemical performance of NaNi0.5Mn0.5O2 was verified, which could also open an avenue for the design of other O3-type sodium cathode materials.
研究领域:
材料科学
·
电化学
·
能量存储
✓ 已验证
DOI
高影响因子
IONICS
·
2025
·
IF 2.6
Zhou Yongkang,Su Zihao,Miao Jie,Peng Gongchang,Wang Hao
O3-type NaNi 1/3 Fe 1/3 Mn 1/3 O 2 (NFM) is recognized as a highly promising cathode material for sodium-ion batteries owing to its cost-effectiveness, substantial theoretical capacity, and facile synthesis. Nevertheless, this material suffers from rapid capacity decay caused by structural degradation and irreversible phase transitions at high voltages (> 4.0 V vs. Na + /Na). Herein, partial substitution of Fe 3+ sites with Ti 4+ in the transition metal layer was implemented. Systematic investigations via X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) reveal that Ti substitution effectively stabilizes the layered framework by suppressing detrimental phase transitions through enhanced structural pillar effects. The optimized NaNi 1/3 Fe 0.23 Mn 1/3 Ti 0.1 O 2 delivers a specific capacity of 144.1 mAh g −1 within 2.0–4.2 V at 0.1 C, demonstrating 71.3% capacity retention after 100 cycles at 1 C (130 mA g −1 ). This work establishes a viable strategy for enhancing structural stability in O3-type cathodes through selective cation substitution. Graphical
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ENERGY & FUELS
·
2025
·
IF 5.3
Guomin Sun,Jiaping Guan,Yu Chen,Litao Lin,Xiaohui Zhu,Xiaogu Huang
As a significant branch of cathodes for sodium-ion batteries (SIBs), the O3-type layered oxide usually receives extensive attention due to its high theoretical capacity. Due to the high tetrahedral site energy of Na+ diffusion transition state, the kinetics of the charge and discharge processes is sluggish. When the concentration of Na+ decreases, the transition metal layers undergo relative slip, leading to layer structure rearrangement and interface degradation, which result in a decrease in performance. In this work, we propose a strategy to optimize the above problem by varying the sodium content to prepare biphasic cathode materials. The prepared Na0.85Fe0.22Ni0.33Mn0.45O2 cathode has an O3/P2 biphasic structure. It shows excellent electrochemical performance, with an initial discharge specific capacity of 121.3 mAh g–1 at 0.1 C and a capacity retention rate of 94.9% after 100 cycles at 0.2 C. A small amount of P2 is introduced into the phase structure of the O3 to improve the diffusion kinetics and enhance the cycling stability. Due to the cooperative effect of O3/P2, the phase transition of O3/P2–O3/P3/P2 occurs in the electrochemical process, and the complex phase transition of O3–O’3 is inhibited. This study provides an idea for the preparation of high-performance cathode materials.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Lihua Feng,Yufan Xia,Jinze Guo,Huiling Liu,Youchen Hao,Ziqi Tian,Xin Xiao,Lijie Feng,Chujun Sun,Shunmian Qi,Kuoqin Li,Yong Li,Yinzhu Jiang
Despite the considerable potential of O3-type layered oxide cathodes in sodium-ion batteries due to their high theoretical capacities, the rapid capacity degradation caused by high Na + diffusion barriers and irreversible phase transitions seriously hampers their practical application. Herein, we propose the La-doping strategy in O3-type layered oxide to decrease diffusion barriers and strengthen transition metal–oxygen (TM-O) bonds, thereby significantly improving the electrochemical performance. The strong La-O bonding facilitates highly reversible O3-P3 phase transitions during (de)sodiation and enhances the stability of lattice oxygen at high voltages. Specifically, the La-doped O3-type oxide exhibits impressive cycling stability, with the capacity retention increasing from 63 % to 80 % after 500 cycles at 1C. The full cell assembly with La-doped oxide as cathode and hard carbon as anode demonstrates a high energy density of 323.7 Wh kg −1 at 0.1C, with a capacity retention of 74.6 % after 300 cycles at 1C. This work provides new insights in La-doping to promote the commercial application of O3-type cathodes for sodium ion batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Caiyan Yu,Linying Yang,Shuwei Sun,Di Chen,Yanfeng Yin,Hui Ying Yang,Ying Bai
Due to their high theoretical specific capacities and good structural compatibility, O3-layered oxides are considered as high-performance cathode candidates for sodium-ion batteries. However, serious side reactions and structural degradation during long-term cycling have greatly hindered their practical applications. Herein, O3-type NaNi 0.5 Mn 0.5 O 2 (NNMO) was prepared by partially substituting Ni 2+ with Cu 2+ and inducing CuO surface coating to enhance the structural stability without sacrificing the high capacity. In Particular, Cu 2+ incorporated at a molar ratio of 0.10 greatly improved the electrochemical performance of pristine NNMO. The NaMn 0.5 Ni 0.4 Cu 0.1 O 2 electrode exhibited a capacity retention of 64.5% after 300 cycles at 0.5 C. Microscopic and spectral studies revealed that the CuO coating layer suppressed detrimental side reactions upon cycling. Moreover, the bulk doping of Cu 2+ ultimately enhanced the structural stability by mitigating irreversible phase transitions. Hence, the integration of bulk Cu 2+ doping and CuO surface coating contributed to the increased structural stability and electrochemical performance of NNMO. The doping and coating dual-modification strategy established in this work effectively suppressed the side reactions and structural degradation of NNMO, and this work provides new insight into the effective design of electrode microstructures for use in high-performance batteries.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2023
·Vol. 11
·期 35
·18872-18880
·
IF 11.9
Ningyun Hong,Jianwei Li,Shihong Guo,Huawei Han,Haoji Wang,Xinyu Hu,Jiangnan Huang,Baichao Zhang,Fang Hua,Bai Song,Nesrin Bugday,Sedat Yasar,Serdar Altin,Wentao Deng,Guoqiang Zou,Hongshuai Hou,Zhen Long,Xiaobo Ji
O3-type NaNi1/3Fe1/3Mn1/3O2 (NFM) is one of the most representative cathode materials with low cost and high capacity advantages. However, the sluggish diffusion kinetics and severe cathode–electrolyte interfacial reaction are serious roadblocks to commercialization. Hereby, a novel method of in situ V-modification is well-designed to play dual roles in reconstructing the crystal lattice and interface structure. Notably, the broadened layer spacing of O–Na–O and shortened TM–O bond are attributed to successful doping of V5+ into the bulk, accelerating the transmission of sodium ions and improving the structure stability. Concomitantly, the construction of a thin surface coating layer is beneficial for mitigating volume expansion and inhibiting structural degradation, which is validated by in situ X-ray diffraction coupled with the synchrotron X-ray absorption spectroscopy. Consequently, the rationally designed V-modified NFM cathode exhibits excellent cycling performances, exhibiting great capacity retention of 75.8% after 500 cycles at 2C in a half cell, and 85.6% capacity retention is observed after 150 cycles at 1C in the full cell. This work provides new insights into the development of O3-type layered oxide cathodes toward long-cycle life applications for large-scale energy storage systems.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Small
·
2024
·
IF 13
Haotian Yan,Dandan Chai,Xiang Li,Yongzhu Fu
O3-type cathodes with sufficient Na content are considered as promising candidates for sodium-ion batteries (SIBs). However, these cathodes suffer from insufficient utilization of the active elements, restraining the delivered capacity. In this work, a high entropy strategy is applied to a typical O3 cathode NaLi 0.1 Ni 0.35 Mn 0.55 O 2 (NLNM), forming a high entropy oxide NaLi 0.1 Ni 0.15 Cu 0.1 Mg 0.1 Ti 0.2 Mn 0.35 O 2 (Na-HE). Results show that the active elements are fully exploited in Na-HE, with a two-electron reaction by Ni 2+/4+ (further extended to Cu redox and even oxygen redox), vastly different from a one-electron reaction of Ni 2+/3+ in NLNM. The full utilization of the active elements dramatically improves the output capacity of the cathode (122.6 mAh g −1 of Na-HE versus 81 mAh g −1 of NLNM). Moreover, the detrimental phase transition is well suppressed in Na-HE. The cathode exhibits high capacity retention of 88.7% after 100 cycles at 130 mA g −1 , compared to only 36.4% for NLNM. These findings provide new insight for the design of new cathode materials for SIBs with high energy density and robust stability.
研究领域:
材料科学
·
电化学
·
电池技术
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Chengzuo Gong,Gaoxu Han,Jialin Lin,Qiangfeng Zhang,Binbin Wang,Menghao Yang,Zhenghong Huang,Chunxiao Zhang,Weifeng Wei
O3-type layered oxides hold significant promise as the material for cathodes in sodium-ion batteries for their favorable electrochemical properties, while irreversible structural degradation and harmful phase transitions during cyclic operation limit the practical application of these materials. In this work, we proposed a La3+/Al3+ codoping strategy in O3-Na(Ni1/3Mn1/3Fe1/3)O2 cathode materials and found that batteries with the Na (Ni1/3Mn1/3Fe1/3)0.998La0.001Al0.001O2 (NFM-La/Al) cathodes exhibited not only promoted capacity from 135.80 to 170.42 mAh g–1 at 0.2 C but also significantly enhanced cycling stability, with a 10% improvement in capacity retention compared with NFM cathodes after 300 cycles. Particularly, their rate performance was significantly improved as well. XRD and XPS tests indicated that La could expand the c-axis of NFM due to its larger ionic radius and thus significantly increased Na+ ion diffusion efficiency, and in addition, Al doping could effectively increase the content of Ni2+ and Mn4+ and thus greatly alleviated the negative Jahn–Teller effect caused by Mn3+. Moreover, consistent with XRD analyses, DFT calculations further substantiated the effectiveness of the La/Al codoping strategy by demonstrating the detailed atom substitution mechanism in the NFM crystal lattice. The boosted structure stability and Na+ diffusion kinetics may enhance the potential for practical applications of O3-type oxide cathodes.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
ACS Applied Energy Materials
·
2025
·
IF 5.5
Xin Wan,Yanyun Zhang,Fangfang Dong,Ning Wang,Congyi Hao,Xiang Huang,Wei Liu,Yongcheng Jin
O3-type layered oxide materials are considered one of the most promising cathode materials for sodium-ion batteries due to their high capacity. However, the structural evolution of the O3-type layered oxide during cycling is more complex, exhibiting poorer structural reversibility. In order to achieve a high electrochemical performance of O3-type sodium-ion cathode materials, we adopted a high-entropy strategy to realize multielement codoping of Mg, Co, and Ti into the transition metal layer of O3-type NaNi0.4Fe0.2Mn0.4O2 and prepared a high-entropy cathode material of NaNi0.35Mg0.05Fe0.15Co0.05Mn0.35Ti0.05O2 (NMFCMT-2). The transition metal layer doped with multiple elements Mg, Co, and Ti not only stabilizes the crystal structure and widens the layer spacing but also weakens the Na–O bonding, thereby facilitating sodium-ion diffusion and mitigating volume changes during the charge–discharge process. In situ XRD results show that this strategy can delay the phase transition of O3–P3 and realize the phase transition of P3–O3 in advance during the discharge process so that NMFCMT-2 can maintain the O3 phase to a greater extent during the cycles. The results show that the capacity retention rate was 80.6% after 200 cycles at 1C and 88.6% after 200 cycles at 5C. In addition, its high voltage cycling stability is also significantly improved compared to the pristine NaNi0.4Fe0.2Mn0.4O2.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
Advanced Energy Materials
·
2023
·Vol. 13
·期 45
·2302793
·
IF 27.8
Kai Zhang,Zhenming Xu,Guodong Li,Rui-Jie Luo,Cui Ma,Yonggang Wang,Yong-Ning Zhou,Yongyao Xia
O3-type layered oxides are promising cathode materials for sodium-ion batteries. However, unsatisfying cyclic stability hinders its practical application, mainly resulting from harmful phase transition and irreversible oxygen redox, especially in high-voltage regions. Herein, a co-doped strategy by incorporating Li + , Mg 2+ , Ca 2+ , and Sb 5+ into the O3-Na 0.8 Ni 0.4 Fe 0.2 Mn 0.4 O 2 cathode materials is proposed. Both suppressing the undesired phase transition over 4.1 V (vs Na/Na + ) and reducing the anisotropic strain are achieved with the novel Na 0.8 Ni 0.3 Fe 0.2 Mn 0.3 Li 0.1 Mg 0.02 Ca 0.05 Sb 0.03 O 2 (LMCS NFM). Moreover, restricted but highly reversible oxygen redox is observed due to strong attraction from Sb 5+ and special “Li–O-vacancy” and “Mg–O-vacancy” configurations. The strategy brings about excellent high-voltage cyclic stability with a reversible capacity of 130 mAh g −1 and a capacity retention of 85% after 250 cycles at 4.2 V, and less thermal runaway risk and moisture sensitivity, increasing the probability of O3-type oxide cathode practical applications.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）