ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
·
2024
·Vol. 64
·期 5
·e202416939
·
IF 16.1
Xin Hou,Shuo Wang,Bo Wang,Yanling Qiu,Mingqin Jiang,Yongfu Tang,Qiong Zheng,Xianfeng Li
Graphical Electrolyte reconfiguration strategy realizes the cross-coordination solvation structure to access highly reversible and facile sodium storage by optimizing the interfacial chemistry and de-solvation process in a broad range of −20 °C to 25 °C. Hard carbon (HC) materials are promising anodes for sodium-ion batteries (SIBs) owing to low cost, high specific capacity and low working potential. However, the poor compatibility of the electrolyte with HC leads to low initial coulombic efficiency (ICE) and sluggish Na + transport kinetics. Here, we propose an electrolyte reconfiguration strategy based on the hard and soft acid and base (HSAB) theory by introducing methyltriphenylphosphonium bromide (MTPPB). MTPPB can realize a spontaneous cross-coordination solvation structure with NaPF 6 by selective affinity, synchronously optimizing the interfacial chemistry and sodium storage process. The advantages of the chemical π–π bridging of MTPP + -HC and interaction of MTPP + -PF 6 − contribute to preferential and oriented reduction of PF 6 − , forming a low-resistance supramolecular SEI. Additionally, Na + -Br − coordination weakens the Na + -solvent interactions, facilitating Na + de-solvation kinetics. Consequently, the HC||Na cell achieves a superior ICE of 96.6 %, desirable rate capability under 25 °C and invisible capacity decay after 500 cycles at 1 C under −20 °C. The Na 4 Fe 3 (PO 4 ) 2 P 2 O 7 ||HC pouch battery displays a high ICE of 90.3 % and a 15 % increment of energy density under 25 °C. This work provides a guidance through electrolyte reconfiguration engineering for designing practical HC-based SIBs with high energy/power density and long-life span in the extended operating-temperature range.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2020
·Vol. 30
·期 10
·1909283
·
IF 16.836
Shanshan Shi,Congli Sun,Xiuping Yin,Liying Shen,Qinhao Shi,Kangning Zhao,Yufeng Zhao,Jiujun Zhang
Transition metal phosphides (TMPs) possess high theoretical sodium storage capacities, but suffer from poor rate performance, due to their intrinsic low conductivity and large volume expansion upon sodiation/desodiation. Compositing TMPs with carbon materials or downsizing their feature size are recognized as efficient approaches to address the above issues. Nevertheless the surface-controlled capacitive behavior is generally dominated, which inevitably compromises the charge/discharge platform, and decreases the operational potential window in full-cell constructions. In this work, a novel architecture (FeP@OCF) with FeP quantum dots confined in P-doped 3D octahedral carbon framework/carbon nanotube is rationally designed. Such structure enables a simultaneous enhancement on the diffusion-controlled capacity in the platform region (2.3 folds), and the surface-controlled capacity in the slope region (2.9 folds) as compared to that of pure FeP. As a result, an excellent reversible capacity (674 mAh g −1 @ 0.1 A g −1 ) and a record high-rate performance (262 mAh g −1 @ 20 A g −1 ) are achieved. A full-cell FeP@OCF// Na 3 V 2 (PO 4 ) 3 is also constructed showing an outstandingly high energy density of 185 Wh kg −1 (based on the total mass of active materials in both electrodes), which outperforms the state-of-the art TMP-based sodium-ion battery full cells.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
Tungsten
·
2024
·
IF 5.6
Chen Hao,Wang Ya-Qin,Zhang Dong-Ting,Zhao Bei,Li Min-Peng,Li Chen-Yang,Xu Tian-Peng,Liu Mao-Cheng
MXenes obtained significant attention in the field of energy storage devices due to their characteristic layered structure, modifiable surface functional groups, large electrochemically active surface, and regulable interlayer spacing. Nonetheless, the self-restacking and sluggish ions diffusion kinetics performance of MXenes during the alkali metal ions insertion/extraction process severely impedes their cycle stability and rate capability. This paper proposes an aniline molecule welding strategy for welding p-phenylenediamine (PPDA) into the interlayers of Ti 2 C through a dehydration condensation reaction. The welded PPDA molecules can contribute pillar effect to the layered structure of Ti 2 C. The pillar effect effectively maintains the structural stability during the sodium ions insertion/extraction process and effectively expands the interlayer spacing of Ti 2 C from 1.16 to 1.38 nm, thereby enhancing ions diffusion kinetics performance and improving the long-term cycle stability. The Ti 2 C-PPDA demonstrates outstanding Na + storage capability, exhibiting a specific capacity of 100.2 mAh·g −1 at a current density of 0.1 A·g −1 over 960 cycles and delivering a remarkable rate capability 81.2 mAh·g −1 at a current density of 5 A·g −1 . The study demonstrates that expanding interlayer spacing is a promising strategy to enhance the Na + storage capacity and improve long-term cycling stability, which provides significant guidance for the design of two-dimensional Na + storage materials with high-rate capability and cycle stability.
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
APPLIED SURFACE SCIENCE
·
2019
·
IF 5.155
Limin Chang,Zheng Yi,Zhaomin Wang,Limin Wang,Yong Cheng
SnO 2 is regarded to be promising for both Li-ion and Na-ion batteries. Thus, it is imperative to fabricate SnO 2 -based anode with improved lithiation reaction kinetics using simple but effective method. Herein, we develop a one-pot hydrothermal route to fabricate two-dimensional SnO 2 nanosheets and the graphene supported SnO 2 nanosheet composite with decreased SnO 2 nanosheet of about 5–10 nm. The ultrathin nanosheet structure anchored on graphene supporting can effectively accelerate the conversion/alloying reaction. Electrochemical researches demonstrate that the reaction kinetics of the lithiation/delithiation reaction can be significantly enhanced by the graphene supported SnO 2 nanosheets. As a result, a capacity of 817.2 mAh g −1 after 100 cycles in the potential window of 0.01 to 3 V are achieved at 500 mA g −1 . The full cell performance and the sodium storage performance are both demonstrated to be good. These promising results suggest that such strategy to fabricate two-dimensional SnO 2 -based anode is of great interest for next-generation Li-ion and Na-ion batteries.
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
·
2020
·Vol. 10
·期 9
·1903652
·
IF 25.245
Ruiqi Guo,Chunxiao Lv,Wenjia Xu,Junwei Sun,Yukun Zhu,Xianfeng Yang,Junzhi Li,Jin Sun,Lixue Zhang,Dongjiang Yang
Due to their high conductivity and low cost, carbon materials have attracted great attention in the field of energy storage, especially as anode material for sodium ion batteries. Current research focuses on introducing external defects through heteroatom engineering to improve the sodium storage performance of carbon materials. However, there is still a lack of systematic investigation of the effects of intrinsic defects prevalent in carbon materials on sodium storage performance. Herein, template-assisted method was used to design carbon materials with different degrees of intrinsic defects and explore their sodium storage properties. The experimental results show that the intrinsic defects in the carbon materials facilitates the adsorption behavior of Na + during the surface induction capacitance process. Among them, the best carbon anode material exhibits high reversible capacity (221 mAh g −1 at 1 A g −1 ) and excellent rate performance. In addition, the density functional theory calculations also show that the existence of intrinsic defects can optimize the distribution of electron density, thereby increasing the Na-adsorption capacity. This work makes an important contribution to understanding the role of intrinsic defects in the sodium storage performance of carbon 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
JOURNAL OF SOLID STATE CHEMISTRY
·
2021
·
IF 3.498
Xuan Luo,Jian Shao,Peng He,Kang Li,Weiwei Zhao
Tin monosulfide (SnS) has received extensive attention as a promising anode material toward sodium storage for its high specific capacity. Herein, we reported a simple and facile vulcanization reaction to synthesize SnS particles dispersed into carbonaceous mesoporous frameworks using Sn-based MOFs as the precursor template. The unique structure of SnS@C improves electrical conductivity of SnS and promotes the electrons transfer . The as-prepared SnS@C-500 composite displays superior sodium storage performance, which exhibits a high specific capacity of 510 mAh g −1 over 200 cycles at the current density of 0.5 A g −1 , as well as superior rate capabilities. The current MOF-derived synthesis method offers a simple and effective apporach to synthesis in situ SnS/carbonaceous composites electrode 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
ELECTROCHIMICA ACTA
·
2021
·
IF 6.901
Xuan Luo,Xiangpeng Kong,Peng He,Jian Shao,Kang Li,Weiwei Zhao
The rational design and assembly specific structures consisting of multiple components with distinctive features are promising strategies for developing advanced materials for efficient sodium storage. Herein, a novel hierarchical sandwich-liked structure MoSe 2 nanosheet array is designed and synthesized, in which MoSe 2 nanosheet through strong interfacial interaction is encapsulated in two dimensional carbon framework that improves electrical conductivity and Na + diffusion kinetic. Moreover, the carbon protective layer reinforces the stability of structure and maintains electrochemical activity during long-term charging/discharging process. The density functional theory calculation (DFT) further confirms carbon incorporation can reduce Na + diffusion energy barrier for enhancing the reaction kinetics. With the obtained NC/MoSe 2 @NC as free-standing electrodes for SIBs, it achieves a reversible capacity of 632 mAh g −1 at 0.2 A g −1 , or actual capacity of 421 mAh g −1 by removing contributed capacity of the carbon cloth substrate, and excellent long cycling stability. By matching with Na 3 V 2 (PO 4 ) 3 /C cathode, the sodium full cell displays a high energy density of 186.2 Wh kg −1 with a power density of 121.2 W kg −1 . This current design and fabrication strategy manifests promising prospect for exploring efficient electrode materials for sodium storage.
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 Storage Materials
·
2019
·
IF 0
Huihui Shangguan,Wei Huang,Christian Engelbrekt,Xiaowen Zheng,Fei Shen,Xinxin Xiao,Lijie Ci,Pengchao Si,Jingdong Zhang
Hollow nanostructured materials present a class of promising electrode materials for energy storage and conversion . Herein, 3D hollow nitrogen-doped carbon shells decorated with well-defined cobalt sulfide nanoparticles (Co 9 S 8 /HNCS) have been constructed for superior lithium and sodium storage. Two steps are involved in the designed preparation procedure. First, hollow intermediates with preserved cobalt components are controllably fabricated by simultaneously dissociating cobalt containing zeolitic-imidazolate-frameworks-67 (ZIF-67), and polymerizing dopamine in a Tris–HCl solution (pH = 8.5). The polydopamine (PDA) wrapped intermediates inherits the polyhedral structure of the ZIF-67 crystals. In the second step, the final Co 9 S 8 /HNCS composite is obtained via a combined carbonization and sulfurization treatment of the intermediates, allowing the formation of hollow polyhedrons of nitrogen-doped carbon shells (900±100 nm) derived from PDA and the encapsulation of highly uniform cobalt sulfide nanoparticles (11±2 nm). This configuration is believed to not only shorten the lithium or sodium ion diffusion distance and accommodate volume change during lithium or sodium ion insertion/extraction, but also to enhance the overall electrical conductivity and the number of active sites. As a result, the Co 9 S 8 /HNCS composite exhibits an impressive reversible capacity of 755 mA h g -1 at 500 mA g -1 after 200 cycles for lithium ion storage, and capacities of 327 mA h g -1 at 500 mA g -1 after 200 cycles and 224 mA h g -1 at 1000 mA g -1 after 300 cycles for sodium ion storage. Essential factors especially the structural stability during cycling have been identified, and the discharge/charge mechanism is discussed.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
DOI
ACS Applied Nano Materials
·
2025
·
IF 5.5
Yafang Zhao,Kai Zhang,Jun Zheng,Yanmei Zhao,Xiaokang Cai,Chao Liu,Ming Zhang,Zhongrong Shen
The closed pores resulting from distortion of the graphite domain structure are crucial for enhancing the reversible capacity of sodium storage in the hard carbon plateau region, as well as achieving a high initial Coulombic efficiency. In this study, we propose a method to enhance the reversible capacity of sodium storage in the hard carbon nanosphere plateau region by utilizing terephthalaldehyde (C8H6O2) and resorcinol (C6H6O2) for modulating closed pore size and graphite domain distribution through an aldol condensation reaction. The structural characterization reveals that an increase in the proportion of sp2 C in the precursor structure leads to graphite domains that are more easily twisted, leading to the formation of closed pores with smaller sizes during high-temperature pyrolysis. The target sample (PRHC-1500) exhibits a plateau capacity proportion of 59.23% and an initial Coulombic efficiency (ICE) of 81.14% in the half-cell. Additionally, the Coulombic efficiency remained at 100% even after undergoing 1000 cycles at a current density of 1600 mA g–1, thereby demonstrating exceptional cycling performance. This paper presents a valuable reference for modulating the closed-pore structure in hard carbon nanospheres by carefully selecting appropriate precursors.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Yuting Tang,Fei Wang,Chang Nie,Haoxi Dong,Yiming Bai,Mingshu Zhao,Sen Yang
Current application of SnS 2 -based anodes in sodium-ion batteries fails to meet the demand for higher Na + storage capacity due to the structural pulverization induced by significant volume changes during cycling. Herein, a novel composite of hollow C@SnS 2 /SnS@C cubes with excellent diffusion kinetics and structural stability from stepwise Na + storage is designed. The SnS with gentle pseudocapacitive reaction acts as the self-supporter to prevent the collapse of SnS 2 /SnS heterostructure during the Na + insertion/extraction. Together with the clamping of double carbon layers and hollow construction, the volume change caused structural instability in heterostructure is effectively alleviated. The rapid transport of electrons and ions within the built-in electric field of heterostructure endows the composite an excellent diffusion kinetics, which is generated from the narrow bandgap and outstanding Na + absorption of heterostructure according to the first-principle calculation. Thus, the as-prepared composite maintains a remarkable capacity of 547.9 mAh g −1 after 200 cycles at current density of 0.5 A g −1 . Even a capacity of 502.5 mAh g −1 with a low attenuation rate of 0.035 % per cycle is achieved at 2 A g −1 after 1000 cycles. The work proposes an effective approach to achieve effective Na + storage of SnS 2 -based anodes with long-lasting structural stability.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2015
·
IF 2.729
Peng Li,Pengfei Wang,Xi Zheng,Haoxiang Yu,Shangshu Qian,Miao Shui,Xiaoting Lin,Nengbing Long,Jie Shu
In this work, novel nano/micro structure nitrates are reported for sodium storage for the first time. By using a facile solution route, carbon black (CB) and carbon nanotube (CNT) are introduced to incorporate with copper nitrate hydrate (Cu(NO 3 ) 2 ·2.5H 2 O) to form Cu(NO 3 ) 2 ·2.5H 2 O/CB and Cu(NO 3 ) 2 ·2.5H 2 O/CNT composites for high capacity sodium storage, respectively. Morphological and structural investigations show that CB or CNT coating does not obviously change the particle size and phase composition of Cu(NO 3 ) 2 ·2.5H 2 O, while, the electrochemical performance of Cu(NO 3 ) 2 ·2.5H 2 O is significantly improved by introducing CB or CNT as a conductive network. Moreover, carbon matrix can also provide a buffer for suppressing particle pulverization during sodiation/desodiation process. Especially for CNT, it builds a three-dimensional conductive network for active particles. As a result, Cu(NO 3 ) 2 ·2.5H 2 O/CNT exhibits higher reversible specific capacity and better cycling stability than bare Cu(NO 3 ) 2 ·2.5H 2 O and Cu(NO 3 ) 2 ·2.5H 2 O/CB. After 30 cycles, Cu(NO 3 ) 2 ·2.5H 2 O/CNT can deliver a reversible charge capacity of 140.7 mAh g − 1 at a current density of 50 mA g − 1 . This result demonstrates that CNT reinforced Cu(NO 3 ) 2 ·2.5H 2 O composite could be a probable anode material for sodium-ion batteries. Besides, the probable sodium storage mechanism in Cu(NO 3 ) 2 ·2.5H 2 O is also proposed by using various ex-situ analytical methods.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2019
·
IF 8.355
Jun Pan,Kang Yu,Hongzhi Mao,Lili Li,Yuchen Zhang,Yanlu Li,Paulo J. Ferreira,Jian Yang
A simple synthesis has been developed for watermelon-like nanocomposites with Ti-based oxides as the matrix. Using the case of Sb nanocrystals in amorphous TiPO x as an example, in-situ/ex-situ techniques, first-principle calculations and control experiments confirm that the formation of Ti-based oxides promotes the reduction of Sb 3+ to Sb by NH 3 at an elevated temperature. A similar synthesis process also succeeds for Sb nanocrystals in amorphous TiO 2 and for Bi nanocrystals in amorphous TiPO x , confirming the promising potential of this synthesis. More importantly, the nanocomposite composed by crystalline Sb in an amorphous TiPO x matrix, as the anode material for sodium storage, concurrently exhibits a long cycle life (~1000 cycles) and a high capacity retention (~82%), suggesting the advantages of watermelon-like structures.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）