CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Lu Cheng,Yabin Sun,Chenhui Ma,Jianshun Feng,Jie Liu,Anhua Liu,Huijuan Yue,Fei Du,Dong Zhang
Selenium is a considerable energy storage material, with presenting a one-step electrochemical reaction in a cheap carbonate-based electrolyte and providing a considerable capacity as a cathode. However, capacity loss and safety issues caused by volume changes during charge and discharge processes, as well as low mass loading, still hinder the practical development of selenium cathodes. Binder is one of the indispensable constitutions of the electrode and crucial for improving the electrochemical performance of the battery. Herein, we design an aqueous robust network binder by doping a trace amount of Fe 3+ ions into sodium alginate for durable lithium/sodium-selenium batteries for the first time. With the modified binder, the capacity of the battery is increased by more than 17% at a current of 0.2C. Furthermore, it can achieve the highest Se loading made by blade coating of up to 12 mg cm −2 , which brings ultra-high reversible areal capacity of 4.9 mAh cm −2 for lithium-selenium battery, and currently the highest reported reversible areal capacity currently of up to 5.6 mAh cm −2 for sodium-selenium battery. Such a well-designed binder can improve the electrochemical performance and areal capacity of selenium cathodes, thereby boosting the practical application of selenium cathodes for energy storage.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Nano Energy
·
2019
·
IF 15.548
Changfan Xu,Kaiwen Zhang,Da Zhang,Shilei Chang,Feng Liang,Pengfei Yan,Yaochun Yao,Tao Qu,Jing Zhan,Wenhui Ma,Bing Yang,Yongnian Dai,Xueliang Sun
A reversible long-life hybrid Na-CO 2 battery is proposed by using Na 3 Zr 2 Si 2 PO 12 solid electrolyte as a separator, N-doped single-wall carbon nanohorns (N-SWCNH) as a catalyst and the saturated NaCl solution as an aqueous catholyte. The Na 3 Zr 2 Si 2 PO 12 ceramic not only has high Na + ion conductivity, but also prevents potential contamination from H 2 O and CO 2 to sodium anode, and avoids the internal short-circuit touch of Na dendrite with cathode, improving the safety of the battery. Benefiting from N dopants , unique internal and interstitial nanoporous structures, N-SWCNH have large surface area for discharge products accumulation, offer substantial structural defect sites for CO 2 adsorption and electron transfer , contributing to high catalytic activity and reversibility . Most importantly, the hybrid Na-CO 2 battery with aqueous electrolyte facilitates the dissolution of the insulated discharge product, which overwhelmingly improves the discharge and charge reactions kinetics. Na-CO 2 batteries exhibit a low charging voltage of 2.62 V and a small voltage gap of 0.49 V at a current density of 0.1 mA cm −2 , a superior discharge capacity of 2293 mAh·g −1 at a current density of 0.2 mA cm −2 , a high round trip efficiency of ~68.7% after 300 cycles. In-situ Raman and ex-suit XRD analyses convincingly show that NaHCO 3 and carbon are the main discharge products.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ACS Applied Energy Materials
·
2021
·
IF 6.024
Wei Weng,Hongli Wan,Gaozhan Liu,Liping Wu,Jinghua Wu,Xiayin Yao
The nanosized Na11Sn2PS12 solid electrolyte with a particle size of around 200 nm is synthesized using the liquid-phase method using 1,2-dimethoxyethane. The sintering conditions for Na11Sn2PS12 crystallization are systematically optimized to maximize ionic conductivity. The highest room temperature ionic conductivity of the liquid-phase-synthesized Na11Sn2PS12 electrolytes (LP-Na11Sn2PS12) is 1.73 × 10–4 S cm–1, which is comparable with that of ball-milling samples (BM-Na11Sn2PS12) of 2.16 × 10–4 S cm–1. Both Na11Sn2PS12 electrolytes show an electrochemical window of 0.3–3.2 V. Moreover, the as-synthesized Na11Sn2PS12 electrolytes are employed as solid electrolytes in TiS2/Na11Sn2PS12/Na all-solid-state batteries. The TiS2/LP-Na11Sn2PS12/Na battery shows a higher reversible capacity of 142.4 mAh g–1 compared with 110.5 mAh g–1 for the TiS2/BM-Na11Sn2PS12/Na battery after 10 cycles under 20 mA g–1 at 25 °C. The better performance of the TiS2/LP-Na11Sn2PS12/Na battery can be ascribed to improved solid–solid contact between the electrolyte and the electrode arising from the nanosized particles of LP-Na11Sn2PS12 electrolytes.
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 COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Zi-hui Ma,Tao Yang,Yan Song,Xiao-dong Tian,Zheng-yang Liu,Xiang-jie Gong,Zhan-jun Liu
Hyper cross-linked polymers (HCPs), as a key precursor of hard carbon (HC) anode materials, stand out because of their capacity for molecular-scale structural design and comparatively straightforward preparation techniques, which are not seen in other porous materials synthesized procedure. A novel synthesis method of HCPs is developed in this paper, which is through the incorporation of functional macromolecules , the structural control and heteroatom doping of the product has been achieved, thus augmenting its electrochemical performance in batteries. In this work, carbonized tetraphenylporphyrin zinc (TPP-Zn) doped HCP-based hard carbon (CTHCP) with stable structure was prepared by Friedel-Crafts reaction and carbonization by using naphthalene and trace TPP-Zn as monomers, dimethoxybenzene (DMB) as crosslinking agent and FeCl 3 as catalyst. The introduction of TPP-Zn, a functional macromolecule with unique two-dimensional structure, realized the pore structure regulation and N doping of the raw carbonized HCP-based hard carbon (CHCP). The results showed that CTHCP had higher mesoporous volume, N content and wider layer spacing than CHCP. In addition, CTHCP anode exhibited excellent Li + /Na + storage performance, initial reversible capacity, rate performance and long cycle life. More amount of N -containing (N-5) active sites and mesoporous content in CTHCP anode was the main reason for the improvement of Na + storage effect. While the increased interlayer spacing had a greater effect on the lithium storage capacity. This study uncovered the design rules of HC anode materials suitable for Li + /Na + batteries and provided a new idea for the preparation of high-performance HC anode materials.
研究领域:
材料科学
·
能源化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials Today Chemistry
·
2023
·
IF 7.3
L. Liu,J. Su,X. Zhou,D. Liang,Y. Liu,R. Tang,Y. Xu,Y. Jiang,Z. Wei
Presently, the low ionic conductivity of Na super ionic conductor (NASICON) electrolytes is one of the main obstacles to the development of solid-state sodium batteries . Most researchers focus on the modified NASICON by doping with foreign elements and have not paid much attention to the effect of the composition changing by adjusting the ratio of elements in Na 1+x Zr 2 Si x P 3-x O 12 (0 ≤ x ≤ 3) on the ionic conductivity . In order to clarify the relationship between the ionic conductivity and the structure/composition of Na 1+x Zr 2 Si x P 3-x O 12 , the ionic conductivity dependence on the Si/P ratio is systematically investigated in this study. The obtained results demonstrate that the ionic conductivity variation of NASICON is close to an order of magnitude i.e. the ionic conductivity of Na 1+x Zr 2 Si x P 3-x O 12 is much more sensitive to the Si/P ratio in the structure. This means that it is crucial to control the composition during the preparation process to obtain the electrolyte with high ionic conductivity. The strong composition-dependent property of Na 1+x Zr 2 Si x P 3-x O 12 can be attributed to the change of current carrier concentration, crystal structure, and sintering property resulting from the Si/P ratio. The results are insightful for further understanding the conducting characteristics of Na 1+x Zr 2 Si x P 3-x O 12 material and its derivatives.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Energy & Environmental Materials
·
2022
·Vol. 6
·期 3
·e12364
·
IF 13.443
Liang Lu,Chunwen Sun,Jian Hao,Zelin Wang,Sergio F. Mayer,Maria Teresa Fernández-Díaz,José Antonio Alonso,Bingsuo Zou
The recovery and utilization of carbon dioxide (CO 2 ) is the key to achieve the targets of peak carbon dioxide emissions and carbon neutrality. The Na-CO 2 battery made with cheap alkali metal sodium and greenhouse gas CO 2 is an effective strategy to consume CO 2 and store clean renewable energy. However, the liquid electrolyte volatilization in the open battery system and inevitable dendrite growth restrict the application of Na-CO 2 batteries. In this work, magnesium-doped Na 3 Zr 2 Si 2 PO 12 (NZSP) was studied as a solid electrolyte for solid-state Na-CO 2 batteries. The ionic conductivity of Na 3.2 Zr 1.9 Mg 0.1 Si 2 PO 12 reaches 1.16 mS cm −1 at room temperature by replacing Zr ions in Na 3 Zr 2 Si 2 PO 12 with Mg ions, and the structural changes are analyzed by neutron powder diffraction. The composite electrolyte consisting of highly conductive Na 3.2 Zr 1.9 Mg 0.1 Si 2 PO 12 and high processability poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) is utilized for the first time to assemble a solid-state Na-CO 2 battery. The cell shows a full discharge capacity of 7720 mAh g −1 at 200 mA g −1 . The middle gap voltage is lower than 2 V after 120 cycles at 200 mA g −1 and at a cut-off capacity of 500 mAh g −1 . This work demonstrates a promising strategy to design high-performance solid-state Na-CO 2 batteries.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Songyang Qian,Zeyu Yuan,Guangshe Li,Dongdong Li,Junzhi Li,Wei Han
The room temperature sodium-sulfur battery has attracted researchers' attention due to its ultra-high energy storage capacity and extremely low cost, but its poor cycling performance and severe dissolution of sodium polysulfide hinder its practical application. Here, we report a stable MXene derived composite sulfur host material based on nickel hydroxide coated with carbon nano network, to achieve the adsorption and conversion of sodium polysulfides. Due to the physical constraints provided by the closed layered structure and the synergistic effect of MXene adsorption and Ni(OH) 2 catalytic activity, the shuttling effect is effectively suppressed. The ex-situ analysis of electrode after reaction shows that the composite material has strong adsorption on polysulfides. In addition, Ni(OH) 2 can also accelerate the reaction process from sulfur to sodium sulfide. Therefore, Ti 3 C 2 T x /Ni(OH) 2 /C/S composite cathode can provide extraordinary reversible capacity 1175.3 mAh/g at 0.22C after 100 cycles and excellent long cycle stability (673.5 mAh/g at 2.2 C with a low decay rate of only 0.032% per cycle over 800 cycles).
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
JOURNAL OF POWER SOURCES
·
2012
·
IF 4.951
Yingying Hu,Zhaoyin Wen,Xiangwei Wu,Jun Jin
Porous carbon films with tunable pore structure to modify the β″-alumina electrolyte surface are fabricated through a low-cost and direct wet chemistry method with glucose and poly(methyl-methacrylate) (PMMA) as precursors. FTIR analysis confirms the effective connection between the carbohydrate and the pore-forming agent PMMA through hydrogen bonds . The experimental results indicate that the structural parameters of the porous carbon films, including mean pore size and film thickness, can be tuned simply by adjusting the amount of PMMA in the glucose/PMMA composite. This soft-template-assisted method could be readily extended to modify any other ceramic surfaces. The porous carbon films are demonstrated to greatly improve the wettability of the β″-alumina ceramics by molten sodium . Na/β″-alumina/Na cells are used to investigate the interfacial properties between sodium and the β″-alumina electrolyte. The results obtained at 350 °C reveal that the polarization behavior of the cell is alleviated by the porous coating . This work represents a successful method to coat ceramics with porous carbon and offers a promising solution to overcome the polarization problems of the sodium/β″-alumina interface in Na-based 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
APPLIED SURFACE SCIENCE
·
2019
·
IF 5.155
Xiaolei Wu,Hanqing Zhao,Junmin Xu,Zhuangfei Zhang,Weixia Sheng,Shuge Dai,Tingting Xu,Sen Zhang,Xinchang Wang,Ye Wang,Xinjian Li
Searching for low-cost, high capacity, stable and well-designed cathode materials with good rate capability and long-life cycling performances is our long-term goal for rechargeable lithium/sodium batteries . In this work, a simple and scalable strategy is developed to synthesize metal-organic frameworks (MOFs) derived Fe 7 S 8 /C composites by sulfurizing Fe-MIL-88A MOFs. The synthesized Fe 7 S 8 /C composites are of rod-like morphology with the well-dispersed Fe 7 S 8 nanoparticles in porous carbon matrix. Such a structure could offer distinct advantages for Fe 7 S 8 -based electrode materials for both lithium and sodium batteries . When evaluated as a cathode material for rechargeable Fe 7 S 8 /Li batteries , the Fe 7 S 8 /C composites exhibit a long and flat discharge plateau around 1.5 V and delivers a high specific discharge capacity of 473 mA h g −1 at 0.1 A g −1 after 100 cycles with excellent rate capability and long-life cycling performance at high current density (~301 mA h g −1 after 1000 cycles at 1.0 A g −1 ). Moreover, the Fe 7 S 8 /C composites could also exhibit high specific capacities, good rate performance and high cycling stability as an anode material for sodium ion batteries. Our findings demonstrate that Fe 7 S 8 /C composites with rod-like morphology are promising electrode materials for lithium/sodium batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Gels
·
2022
·Vol. 8
·期 3
·193
·
IF 4.432
Shipeng Chen,Li Feng,Xiaoji Wang,Yange Fan,Yubin Ke,Lin Hua,Zheng Li,Yimin Hou,Baoyu Xue
Owing to the potential of sodium as an alternative to lithium as charge carrier, increasing attention has been focused on the development of high-performance electrolytes for Na batteries in recent years. In this regard, gel-type electrolytes, which combine the outstanding ionic conductivity of liquid electrolytes and the safety of solid electrolytes, demonstrate immense application prospects. However, most gel electrolytes not only need a number of specific techniques for molding, but also typically suffer from breakage, leading to a short service life and severe safety issues. In this study, a supramolecular thixotropic ionogel electrolyte is proposed to address these problems. This thixotropic electrolyte is formed by the supramolecular self-assembly of D-gluconic acetal-based gelator (B8) in an ionic liquid solution of a Na salt, which exhibits moldability, a high ionic conductivity, and a rapid self-healing property. The ionogel electrolyte is chemically stable to Na and exhibits a good Na+transference number. In addition, the self-assembly mechanism of B8 and thixotropic mechanism of ionogel are investigated. The safe, low-cost and multifunctional ionogel electrolyte developed herein supports the development of future high-performance Na batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Applied Materials Today
·
2022
·
IF 8.663
Wei Weng,Gaozhan Liu,Yunming Li,Lin Shen,Xiayin Yao
Development of sodium solid electrolytes with high ionic conductivity and good interface stability towards Na metal plays a dominant role in achieving stable all-solid-state sodium batteries. Herein, WS 2 -doped Na 3- x Sb 1- x W x S 4 and WO 2 -doped Na 3- x Sb 1- x W x S 4–2 x O 2 x ( x = 0.025, 0.05, 0.075, 0.1) solid electrolytes are successfully synthesized by melt-quenching method followed by an annealing procedure. Compared with 0.98 mS cm −1 for pristine Na 3 SbS 4 , the dramatically enhanced room temperature ionic conductivities of 10.37 and 8.49 mS cm −1 are achieved for Na 2.95 Sb 0.95 W 0.05 S 4 and Na 2.95 Sb 0.95 W 0.05 S 3.9 O 0.1 , respectively. In addition, it is found that the introduction of oxygen in Na 3 SbS 4 through W and O co-doping can alleviate the deteriorative Na/solid electrolyte interface induced by W substitution. The modified interface stability is demonstrated by the suppressed increase of Na plating/striping voltage and impedance for the symmetric Na/Na 2.95 Sb 0.95 W 0.05 S 3.9 O 0.1 /Na cells. Moreover, in contrast with rapid capacity decay for TiS 2 /Na 2.95 Sb 0.95 W 0.05 S 4 /Na battery, the batteries employing Na 2.95 Sb 0.95 W 0.05 S 3.9 O 0.1 exhibit stable cyclic performance and good rate capability. This work provides a W and O co-doping strategy for preparing Na 3 SbS 4 solid electrolytes with simultaneously enhanced ionic conductivity and interface stability.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Energy Storage Materials
·
2022
·
IF 20.831
Qiao Wang,Chuang Yu,Liping Li,Xiaoqing Liu,Xin Zhang,Guichen Gao,Yaowen Wang,Guangshe Li
Solid-state sodium batteries (SSSBs) display great potential in scale energy storage for their safety, cost and sustainability. However, it is a great challenge to achieve high ionic conductivity and temperature adaptability for most sodium-ion solid electrolytes. Here, we first demonstrate that Sc 3+ -doped Na 3 Zr 2 Si 2 PO 12 (NASICON) is a promising electrolyte for a wide temperature range utilizing in SSSBs from 0 to 80 °C. Optimal Na 3.4 Zr 1.6 Sc 0.4 Si 2 PO 12 shows a superior Na-ion conductivity, up to 1.77 × 10 −3 S cm −1 at room temperature, and excellent Na metal compatibility, as confirmed by a symmetrical cell test. Furthermore, the solid-state sodium battery with the configuration of Na 3 V 2 (PO 4 ) 3 /Na 3.4 Zr 1.6 Sc 0.4 Si 2 PO 12 /Na maintains a discharge capacity of 98.7 mAh g −1 at 1C after 300 cycles at room temperature. Even at 0 °C, the battery still displays a reversible capacity of 99.2 mAh g −1 at 0.1C after 100 cycles. Through the structure analysis and ex-situ and in-situ electrochemical characterizations, the reasons that dominate the excellent performance of the assembled all-solid-state sodium battery with NASICON electrolytes are initially revealed.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）