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
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
Nano Energy
·
2025
·
IF 17.1
Lan Wang,Dongyang Liu,Gaozhan Liu,Huilin Pan,Liangfeng Huang,Xiayin Yao
The low ionic conductivity of sodium solid electrolytes and the instability with moisture and sodium metal are the main challenges for the development of all-solid-state sodium batteries. In this work, a Na 3 SbS 4 solid electrolyte with coexisting W and F dopants (Na 2.804 Sb 0.879 W 0.046 S 3.7 F 0.075 ) is synthesized and achieves a high ionic conductivity of 11.13 mS cm −1 . Density-functional-theory calculations indicate that both the reduced Na-vacancy formation energy and Na-ion diffusion barrier by such co-doping strategy contribute to the improved ionic conductivity. Furthermore, although the promoted H 2 O dissociation by W doping results in the extremely low stability of Na 2.95 Sb 0.95 W 0.05 S 4 in moisture, the added F dopant dramatically increases the energy costs for H 2 O adsorption and dissociation, effectively inhibiting the hydrolysis of Na 2.804 Sb 0.879 W 0.046 S 3.7 F 0.075 . Moreover, the NaF layer formed at the interfaces of Na/Na 2.804 Sb 0.879 W 0.046 S 3.7 F 0.075 /Na symmetric cell significantly ameliorates the interfacial instability caused by W, realizing four times longer stable cycle time to 800 h. As a result, the TiS 2 /Na 2.804 Sb 0.879 W 0.046 S 3.7 F 0.075 /Na battery shows an initial reversible capacity of 173.3 mAh g −1 , with a capacity retention of 85 % after 100 cycles at 0.1 C.
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 ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Jian Ma,Minghao Huang,Lei Dong,Yueda Wang,Yueyue Wu,Zhendong Zhu,Le Zhang,Rulong Zhou,Xuyong Feng,Qian Hou,Hongfa Xiang
Quasi-solid-state batteries (QSSBs) are an intermediate development step from liquid batteries toward all-solid-state batteries, and the diminish of liquid content in QSSBs is of practical significance. However, in sodium batteries with a metallic Na anode, large interfacial resistance is a bottleneck restricting rate capability and further decrease of liquid content in QSSBs. In this work, we demonstrate the construction of a robust anode–electrolyte interface with facilitated charge transfer process and enhanced chemical stability for in-situ polymerized QSSBs, realized by a 3D Na/Na-Sn composite anode. The Na-Sn alloys uniformly distributed in Na matrix not only possess lower Na + diffusion barrier intrinsically, but also contribute to a stereo surface with increased electrochemical surface area, which is beneficial to accommodating volume variations during sodiation/desodiation. Importantly, the in-situ polymerization process is highly compatible with the 3D composite anode without sacrificing of interfacial geometric contact. As a result, in QSSBs with a Na 3 V 2 (PO 4 ) 3 cathode, by replacing metallic Na anode with the Na/Na-Sn composite anode, liquid content in quasi-solid-state electrolyte can be appropriately reduced (e.g., from 70% to 50%) while maintaining similar level of electrochemical performance, i.e. high discharge specific capacity (109.5 mAh g −1 at 0.5 C ) and good cyclic stability (96.5% capacity retention after 650 cycles), showing high practical significance.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Journal of Energy Chemistry
·
2024
·
IF 14
Lv Hu,Hui Li,Fang Chen,Yating Liu,Jinzhu Wang,Cheng Ma
Chloride solid electrolytes possess multiple advantages for the construction of safe, energy-dense all-solid-state sodium batteries, but presently the chlorides with sufficiently high cost-competitiveness for commercialization almost all exhibit low Na-ion conductivities of around 10 −5 S cm −1 or lower. Here, we report a chloride solid electrolyte, Na 2.7 ZrCl 5.3 O 0.7 , which reaches a Na-ion conductivity of 2.29 × 10 −4 S cm −1 at 25 °C without involving overly expensive raw materials such as rare-earth chlorides or Na 2 S. In addition to the efficient ion transport, Na 2.7 ZrCl 5.3 O 0.7 also shows an excellent deformability surpassing that of the widely studied Na 3 PS 4 , Na 3 SbS 4 , and Na 2 ZrCl 6 solid electrolytes. The combination of these advantages allows the all-solid-state cell based on Na 2.7 ZrCl 5.3 O 0.7 and NaCrO 2 to realize stable room-temperature cycling at a much higher specific current than those based on other non-viscoelastic chloride solid electrolytes in literature (120 mA g −1 vs. 12–55 mA g −1 ); after 100 cycles at such a high rate, the Na 2.7 ZrCl 5.3 O 0.7 -based cell can still deliver a discharge capacity of 80 mAh g −1 at 25 °C.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2021
·
IF 9.127
Wei Weng,Gaozhan Liu,Lin Shen,Xiayin Yao
The quaternary antimony (Sb)-based sulfide sodium solid electrolyte Na 11 Sn 2 SbS 12 with good moisture stability is attractive for practical application in all-solid-state sodium batteries . However, the Na 11 Sn 2 SbS 12 exhibits low room temperature ionic conductivity and it is difficult to obtain pure phase due to the limited solubility of Sb in the Na 11 Sn 2 SbS 12 crystal structure. Herein, titanium (Ti)-doping Na 11+ x Sn 2 Sb 1- x Ti x S 12 ( x = 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.8, 1.0) materials are systematically investigated, and the highest room temperature ionic conductivity of 1.01 mS cm −1 is achieved when x = 0.5 (Na 11.5 Sn 2 Sb 0.5 Ti 0.5 S 12 ), which is 3 times higher than that of pristine Na 11 Sn 2 SbS 12 . X-ray diffraction and alternating current impedance analyses reveal that the substitution of Sb with Ti can prevent the formation of the NaSbS 2 impurity, determining high ionic conductivity. Meanwhile, the Na 11.5 Sn 2 Sb 0.5 Ti 0.5 S 12 demonstrates good air stability with limited H 2 S gas evolution. Besides, the activation energy , electronic conductivity and electrochemistry stability window for Na 11.5 Sn 2 Sb 0.5 Ti 0.5 S 12 are also evaluated. Moreover, a high reversible capacity and stable cyclic performance of TiS 2 based all-solid-state sodium battery using Na 11.5 Sn 2 Sb 0.5 Ti 0.5 S 12 are demonstrated, showing an initial discharge capacity of 177.6 mAh g −1 at 0.1C with a capacity retention of 83.5% based on the second discharge capacity after 50 cycles at 25 °C.
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 COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Jialin Xu,Baolong Liang,Yiwei Lv,Bingbing Li,Sangni Zhong,Lituo Zheng,Mingdeng Wei,Zhensheng Hong
Solid-state sodium batteries (SSBs) have attracted great interests due to their high energy density, good safety and cost-effectiveness. However, their cycling stability and rate capability remain limited. Here, we report a synergistic modification strategy of Li + bulk doping and carbon surface coating on the O3-type layered oxide NaCrO 2 (NCO). Li + doping enhances sodium ion diffusion coefficient (from 8.30*10 −11 cm 2 s −1 to 1.22 * 10 −10 cm 2 s −1 ) and improves structural reversibility during cycling. Meanwhile, the uniform carbon coating effectively inhibits the side reactions on the surface and reduces the electrode volume change to 0.7 %. The modified NCO-1.5 L@8 %P material shows excellent cycle stability and rate performance with conventional organic electrolyte (80.8 % retention after 1600 cycles, and 113.5 mAh g −1 at 10C current rate). Leveraging enhanced solid–solid interfacial compatibility, this material was further used to assemble NCO-1.5 L@8 %P/0.2 Mg-NZSP/Na solid state batteries. Under a high current rate of 2C, the SSB cycles stably with a capacity retention rate of 95.5 % after 200 cycles. When the current is increased to 5C/10C, a capacity of 102.7/96.1 mAh g −1 can still be obtained, effectively overcoming the rate capability limitations typically associated with conventional solid-state batteries. Through a comprehensive design strategy encompassing bulk-phase structural regulation, interfacial modification, and solid-state adaptation, this work elucidates the regulation mechanism by which synergistic modifications enhance electrochemical kinetics and interfacial stability.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2021
·Vol. 56
·期 16
·9951-9960
·
IF 4.22
Yao Yiwei,Liu Zehua,Wang Xinxin,Chen Jingjing,Wang Xiaotong,Wang Dajian,Mao Zhiyong
Solid polymer electrolytes can significantly improve the safety and energy density of sodium-ion batteries compared with the liquid electrolytes. However, the low ionic conductivity and poor mechanical properties inhibit the practical application. In this paper, poly(ethylene oxide) (PEO) solid polymer electrolytes with enhanced ion conductivity are demonstrated by introducing inorganic solid electrolyte (beta-alumina) filler. With the presence of conductive beta-alumina filler, the ion conductivity of the resultant PEO polymer electrolyte is enhanced from 2.5*10 –4 to 3.95*10 –4 S cm −1 . Applied in sodium-ion batteries (SIBs), the cell delivers an initial discharge capacity of 93.1 mAh g −1 and acceptable cycling performance (77.8 mAh g −1 after 100 cycles), which are significantly superior to that of the PEO solid polymer electrolyte without beta-alumina filler modification. The presented results prove that the ion conductivity of PEO polymer electrolyte can be enhanced by adding conductive beta-alumina, promoting its practical application in Na-ion all-solid-state batteries or other electrochemical energy storage systems.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
RARE METALS
·
2018
·Vol. 37
·期 6
·480-487
·
IF 1.5
Yang Jing,Wan Hong-Li,Zhang Zhi-Hua,Liu Gao-Zhan,Xu Xiao-Xiong,Hu Yong-Sheng,Yao Xia-Yin
Using stable inorganic solid electrolyte to replace organic liquid electrolyte could significantly reduce potential safety risks of rechargeable batteries. Na-superionic conductor (NASICON)-structured solid electrolyte is one of the most promising sodium solid electrolytes and can be employed in solid-state sodium batteries. In this work, a NASICON-structured solid electrolyte Na 3.1 Zr 1.95 Mg 0.05 Si 2 PO 12 was synthesized through a facile solid-state reaction, yielding high sodium-ionic conductivity of 1.33 × 10 −3 S·cm −1 at room temperature. The results indicate that Mg 2+ is a suitable and economical substitution ion to replace Zr 4+ , and this synthesis route can be scaled up for powder preparation with low cost. In addition to electrolyte material preparation, solid-state batteries with Na 3.1 Zr 1.95 Mg 0.05 Si 2 PO 12 as electrolyte were assembled. A specific capacity of 57.9 mAh·g −1 is maintained after 100 cycles under a current density of 0.5C rate at room temperature. The favorable cycling performance of the solid-state battery suggests that Na 3.1 Zr 1.95 Mg 0.05 Si 2 PO 12 is an ideal electrolyte candidate for solid-state sodium batteries.
研究领域:
材料科学
·
电化学
·
能源存储
·
无机化学
·
固体离子学
✓ 已验证
DOI
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2023
·Vol. 27
·期 12
·3315-3324
·
IF 2.5
Kuang Juner,Li Xiang,Li Yisa,Zhong Yu,Gu Changdong,Xia Xinhui,Wang Xiuli,Tu Jiangping
Polyethylene oxide (PEO)-based solid electrolytes, which exhibit ideal extensibility and wide electrochemical window, are considered as one of the most promising candidates for all solid-state sodium batteries (ASSSBs). However, the low mechanical strength and low ionic conductivity hinder their application. Herein, electrospun MgAl 2 O 4 nanofibers are complexed with PEO/NaClO 4 to enhance the mechanical and thermal stability. Determined by 23 Na solid-state nuclear magnetic resonance spectroscopy combined with first-principle calculations, the adsorption energy of ClO 4 − on the MgAl 2 O 4 surface is far higher than that on PEO, which facilitates the dissociation of Na + and ClO 4 − , thereby enabling a fast transport of Na + by the introduction of MgAl 2 O 4 in the polymer electrolyte. The ionic conductivity is enhanced to 1.89 × 10 −4 S cm −1 from 8.46 × 10 −5 S cm −1 at 55 °C, and the Na + transfer number is improved to 0.55 from 0.26 in the composite electrolyte. The Na//(PEO/MgAl 2 O 4 /NaClO 4 )//Na symmetric cell can cycle for over 400 h at a current density of 0.05 mA cm −2 and a cut-off capacity of 0.05 mAh cm −2 while the ASSSBs incorporating the polymer composite electrolyte also exhibit notable rate and cycle performances.
研究领域:
材料科学
·
能源化学
·
纳米技术
·
电化学
·
高分子科学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Tinghu Liu,Lin Shen,Yunming Li,Kemin Jiang,Libo Song,Yuming Jin,Jing Yang,Xing Xin,Xiayin Yao
NASICON oxide solid electrolytes are considered promising candidates for all-solid-state sodium batteries due to their extremely high ionic conductivity and favorable electrochemical stability. However, the practical application of NASICON electrolytes is greatly impeded by poor electrolyte–electrode interfacial contact and continuous sodium dendrite propagation. Herein, a NaF-rich multifunctional interface layer on the surface of a Na anode (Na@NaF-rich), containing NaF, amorphous carbon, and an unreacted C–F bond species, is developed in situ by the reaction between Na and commercial poly(tetrafluoroethylene). This NaF-rich interface layer is proven to reduce the diffusion barriers at the Na/NASICON electrolyte interface and homogenize Na deposition as well as suppress Na dendrite growth, thus achieving a high critical current density of 4 mA cm–2. The resultant Na3V2(PO4)3@C/Na@NaF-rich all-solid-state cell showed a high initial specific capacity of 117.6 mAh g–1 at 0.1 C with a Coulombic efficiency of 94.8%. Even at 0.5 and 1 C, it still exhibited high capacity retentions of 83.3% and 80.4%, respectively, after 750 cycles.
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
危险品化学品经营许可证（带存储）