ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Bo Fan,Yuexin Fang,Bai Xue,Qixing Wu,Zhongkuan Luo,Xianghua Zhang,Laurent Calvez,Lilin Wu
Flexible solid-state batteries fabricated by printing techniques are promising integrated power supplies for miniaturized and customized electronic devices. While typically these batteries use polymer solid electrolytes, a flexible Li2S cathode with sulfide solid electrolyte is spray-printed in this work, by using solvated Li3PS4 nanoparticles as inorganic ion-conductive binder. This benefits from a novel low-temperature-sintering property of these nanoparticles, which can be pressure-free densified, along with the desolvation process, and thus bind the cathode at 250 °C. The battery can be stably charged and discharged for 300 cycles with no stacking pressure, and the capacity maintains at 840 mA h gLi2 S–1. We believe this low-temperature-sintering phenomenon of solid electrolyte nanoparticles will open a new path toward the application of sulfide solid electrolytes in printed solid-state batteries.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
·
2018
·
IF 6.945
Shaojie Chen,Junye Wang,Zhihua Zhang,Linbin Wu,Lili Yao,Zhenyao Wei,Yonghong Deng,Dongjiu Xie,Xiayin Yao,Xiaoxiong Xu
Nano-sized fillers in a polymer matrix with good distribution can play a positive role in improving polymer electrolytes in the aspects of ionic conductivity , mechanical property and electrochemical performance of Li-ion cells. Herein, polyethylene oxide (PEO)/Li 3 PS 4 hybrid polymer electrolyte is prepared via a new in-situ approach. The ionic conductivities of the novel hybrid electrolytes with variable proportions are measured, and the optimal electrolyte of PEO-2%vol Li 3 PS 4 presents a considerable ionic conductivity of 8.01 × 10 −4 S cm −1 at 60 °C and an electrochemical window up to 5.1 V. The tests of DSC and EDXS reveal that the Li 3 PS 4 nanoparticles with better distribution, as active fillers scattering in the PEO, exhibit a positive effect on the transference of lithium ion and electrochemical interfacial stabilities. Finally, the assembled solid-state LiFePO 4 /Li battery presents a decent cycling performance (80.9% retention rate after 325 cycles at 60 °C) and excellent rate capacities with 153, 143, 139 and 127 mAh g −1 at the discharging rate of 0.1 C, 0.2 C, 0.5 C and 1 C at 60 °C. It is fully proved that it is an advanced strategy to preparing the new organic/inorganic hybrid electrolytes for lithium-ion batteries applications.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Chinese Physics B
·
2022
·Vol. 31
·期 9
·098203
·
IF 1.652
Jieru Xu,Qiuchen Wang,Wenlin Yan,Liquan Chen,Hong Li,Fan Wu
Sulfide solid electrolytes are widely regarded as one of the most promising technical routes to realize all-solid-state batteries (ASSBs) due to their high ionic conductivity and favorable deformability. However, the relatively high price of the crucial starting material, Li2S, results in high costs of sulfide solid electrolytes, limiting their practical application in ASSBs. To solve this problem, we develop a new synthesis route of Li2S via liquid-phase synthesis method, employing lithium and biphenyl in 1, 2-dimethoxyethane (DME) ether solvent to form a lithium solution as the lithium precursor. Because of the comparatively strong reducibility of the lithium solution, its reaction with sulfur proceeds effectively even at room temperature. This new synthesis route of Li2S starts with cheap precursors of lithium, sulfur, biphenyl and DME solvent, and the only remaining byproduct (DME solution of biphenyl) after the collection of Li2S product can be recycled and reused. Besides, the reaction can proceed effectively at room temperature with mild condition, reducing energy cost to a great extent. The as-synthesized Li2S owns uniform and extremely small particle size, proved to be feasible in synthesizing sulfide solid electrolytes (such as the solid-state synthesis of Li6PS5Cl). Spontaneously, this lithium solution can be directly employed in the synthesis of Li3PS4 solid electrolytes via liquid-phase synthesis method, in which the centrifugation and heat treatment processes of Li2S are not necessary, providing simplified production process. The as-synthesized Li3PS4 exhibits typical Li+ conductivity of 1.85×10−4 S⋅cm−1 at 30 °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
·
2023
·
IF 9.2
Hongjiao Wang,Wenzhi Li,Lilin Wu,Bai Xue,Fang Wang,Zhongkuan Luo,Xianghua Zhang,Ping Fan,Laurent Calvez,Bo Fan
The solid/liquid Li-S battery shows promise in solving both the polysulfide “shuttle effect” in liquid batteries and the interfacial contact in all-solid-state batteries. However, increasing the interfacial stability of the electrolyte and the solid electrolyte remains a challenge in the solid/liquid batteries. In this work, a high ionic conductivity Li 3 PS 4 solution is synthesized using a nano-Li 2 S precursor, which is then utilized to form a solid electrolyte Li 3 PS 4 @Li 7 P 3 S 11 via dip-coating. The Li 3 PS 4 @Li 7 P 3 S 11 can form a dense protective interface Li 3 PS 4 -DME with the DOL/DME and DME electrolyte. This interface can prevent direct contact between the solid electrolyte and the electrolytes, efficiently inhibiting further solid electrolyte decomposition. The lithium symmetric battery with the solid electrolyte Li 3 PS 4 @Li 7 P 3 S 11 is cycled stably for 1000 h, at a current density of 0.38 mA cm −2 and a capacity of 1.51 mA h cm −2 . The Li-S battery with the solid electrolyte Li 3 PS 4 @Li 7 P 3 S 11 can cycle stably for 300 cycles at 0.2C with a capacity of 600 mA h g −1 remaining.
研究领域:
材料科学
·
电化学
·
能量存储
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Hongjiao Wang,Lilin Wu,Bai Xue,Fang Wang,Zhongkuan Luo,Xianghua Zhang,Laurent Calvez,Ping Fan,Bo Fan
Controlling the composition and microstructure of the solid electrolyte interphase (SEI) layer is critical to improving the cycling stability of the high-energy-density lithium–metal electrode. It is a quite tricky task to control the properties of the SEI layer which is conventionally formed by the chemical reactions between a Li metal and the additives. Herein, we develop a new route to synthesize a lithium-compatible sol of the sulfide electrolyte Li3PS4, so that a Li3PS4 artificial SEI layer with a controllable nanoscale thickness and high phase purity can be prepared by spin-coating. The layer stabilizes the lithium/electrolyte interface by homogenizing the Li-ion flux, preventing the parasitic reactions, and alleviating concentration polarization. Consequently, a symmetrical cell with the Li3PS4-modified lithium electrodes can achieve stable lithium plating/stripping for 800 h at a current density of 1 mA cm–2. The Li–S batteries assembled with the Li3PS4-protected Li anodes show better capacity retention than their bare Li counterparts, whose average decay rate from the 240th cycle to the 800th cycle is only 0.004%/cycle. In addition, the Li3PS4 layer improves the rate capacity of the batteries, significantly enhancing the capacity from 175 to 682 mA h g–1 at a 2 C rate. The spin-coated Li3PS4 artificial SEI layer provides a new strategy to develop high-performance Li metal batteries.
研究领域:
材料科学
·
电化学
·
电池技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yuan Gao,Jing Gao,Zhibin Zhang,Yue Wu,Xiaolin Sun,Fuhua Zhao,Yuan Zhang,Depeng Song,Wenyan Si,Qing Zhao,Xun Yuan,Jianfei Wu
Sulfide solid-state electrolytes have garnered considerable attention owing to their notable ionic conductivity and mechanical properties. However, achieving an electrolyte characterized by both high ionic conductivity and a stable interface between the electrode and electrolyte remains challenging, impeding its widespread application. In this work, we present a novel sulfide solid-state electrolyte, Li3.04P0.96Zn0.04S3.92F0.08, prepared through a solid-phase reaction, and explore its usage in all-solid-state lithium sulfur batteries (ASSLSBs). The findings reveal that the Zn, F co-doped solid-state electrolyte exhibits an ionic conductivity of 1.23 × 10–3 S cm–1 and a low activation energy (Ea) of 9.8 kJ mol–1 at room temperature, illustrating the aliovalent co-doping’s facilitation of Li-ion migration. Furthermore, benefiting from the formation of a LiF-rich interfacial layer between the electrolyte and the Li metal anode, the Li/Li3.04P0.96Zn0.04S3.92F0.08/Li symmetrical cell exhibits critical current densities (CCDs) of up to 1 mA cm–2 and maintains excellent cycling stability. Finally, the assembled ASSLSBs exhibit an initial discharge capacity of 1295.7 mAh g–1 at a rate of 0.05 C and at room temperature. The cell maintains a capacity retention of 70.5% for more than 600 cycles at a high rate of 2 C, representing a substantial improvement compared to the cell with Li3PS4. This work provides a new idea for the design of solid-state electrolytes and ASSLSBs.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2022
·
IF 4.326
Zhongkai Wu,Ru Wang,Chuang Yu,Chaochao Wei,Shuai Chen,Cong Liao,Shijie Cheng,Jia Xie
Sulfide electrolytes show great potential as solid electrolytes for all-solid-state batteries due to their high ionic conductivity and low interfacial resistance toward electrode materials. The structure of the P–S framework in the composition of sulfides plays a crucial role in the conductivity. Introducing LiI in the Li3PS4 structure can tailor the P–S frameworks and thus achieve high ionic conductivities. Herein, the dopant of LiI is optimized by high-rotation milling, followed by a sintering route to achieve the highest Li-ion conductivity of 2.3 mS cm–1 for the Li3PS4-50% LiI electrolyte (also denoted as Li7P2S8I) among different compositions. The phase variations and structure evolution of the P–S frameworks in the LiI-doped Li3PS4 electrolytes are carefully investigated in a combination of X-ray diffraction and Raman spectra. All-solid-state Li–S batteries using the prepared Li7P2S8I electrolyte combined with a nano Li2S cathode and a Li–In anode deliver a high initial discharge capacity of 739.7 mA h g–1 and sustain a discharge capacity of 517.7 mA h g–1 after 60 cycles with a capacity retention of 70.0% at 0.13 mA cm–2 at room temperature. When the operating temperature rises to 60 °C, it shows a higher discharge capacity of 862.8 mA h g–1 with fast capacity decay. However, it exhibits stable capacities and superior cycling performance under 0 °C over 70 cycles. Electrochemical impedance spectroscopy and in situ stack-pressure results find that the electrochemical performance differences of the assembled battery at different operating temperatures are associated with the interfacial resistance caused by volume changes. This work provides the strategy to obtain highly conductive sulfide electrolytes for SSBs and unravels the temperature effects on the electrochemical performance of all-solid-state Li–S batteries.
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 Materials & Interfaces
·
2020
·
IF 8.758
Bo Fan,Yanghai Xu,Rui Ma,Zhongkuan Luo,Fang Wang,Xianghua Zhang,Hongli Ma,Ping Fan,Bai Xue,Weiqiang Han
Conversion-type batteries with electrode materials partially dissolved in a liquid electrolyte exhibit high specific capacity and excellent redox kinetics, but currently poor stability due to the shuttle effect. Using a solid-electrolyte separator to block the mass exchange between the cathode and the anode can eliminate the shuttle effect. A stable interface between the solid-electrolyte separator and the liquid electrolyte is essential for the battery performance. Here, we demonstrate that a stable interface with low interfacial resistance and limited side reactions can be formed between the sulfide solid-electrolyte β-Li3PS4 and the widely used ether-based liquid electrolytes, under both reduction and oxidation conditions, due to the rapid formation of an effective protective layer of ether-solvated Li3PS4 at the sulfide/liquid electrolyte interface. This discovery has inspired the design of a β-Li3PS4-coated solid-electrolyte Li7P3S11 separator with a simultaneously high ion-conduction ability and good interfacial stability with the liquid electrolyte, so that hybrid lithium–sulfur (Li–S) batteries with this composite separator conserve a high discharge capacity of 1047 mA h g–1 and a high second discharge plateau of 2.06 V after 150 cycles.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2021
·Vol. 105
·期 5
·3252-3260
·
IF 3.784
Pingping Dong,Qing Jiao,Zengcheng Zhang,Miao Jiang,Changgui Lin,Xianghua Zhang,Hongli Ma,Baochen Ma,Shixun Dai,Tiefeng Xu
High ionic conductivity, low grain boundary impedance, and stable electrochemical property have become the focus for all-solid-state lithium–sulfur batteries (ASSLSB). One of the approaches is to promote the rapid diffusion of lithium ions by regulating the chemical bond interactions within the framework. The structure control of P 5+ substitution for Sn 4+ on lithium-ion transport was explored for a series of Li 3 PS 4 –Li 4 SnS 4 glass–ceramic electrolytes. Results showed that the grain boundary impedance of the glass electrolyte was reduced after heat treatments. The formation of LiSnPS microcrystals, a good superionic conductor, was detected by X-ray diffraction tests. Electrochemical experiments obtained the highest conductivity of 29.5 S cm −1 at 100°C and stable electrochemical window from –0.1 to 5 V at 25°C. In addition, the cell battery was assembled with prepared electrolyte, which is promoted as a candidate solid electrolyte material with improved performance for ASSLSB.
研究领域:
材料科学
·
储能技术
·
全固态电池
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2022
·Vol. 105
·期 12
·7751-7759
·
IF 4.186
Guoda Wang,Pingping Dong,Bo Liang,Changgui Lin,Xiang Shen,Shixun Dai,Qing Jiao
An amorphous superionic conductor is a promising solid electrolyte (SE) with excellent ionic conductivity and high energy density, which would be promising candidates for all-solid-state lithium-ion batteries. However, these advantageous features alone are difficult to achieve large-scale practical applications. Having a simple, effective synthetic route and good air stability is also critically important for SEs. Here, Li 3 PS 4 – x LiBr glass SE with high conductivity was obtained by simple mechanical milling and subsequent short-term low-temperature treatment. The site disorder between S 2− and Br − anions facilitates ionic transport. Our comparison of air stability before and after doping with halogen revealed that Br − doping well reduced the production of H 2 S gas and improved the air stability of the SE.
研究领域:
材料科学
·
储能
·
固态离子学
·
锂离子电池
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2022
·
IF 7.336
Guoda Wang,Changgui Lin,Chengwei Gao,Pingping Dong,Bo Liang,Xiang Shen,Qing Jiao
The design of solid electrolyte with resistance to dendrite growth and air stability is essential for the development of all-solid-state Li + cells. The suppression of hydrogen sulfide was well controlled after adding the halide, and a protective layer formed to prevent the PS 4 3− units in the electrolyte from reacting with H 2 O molecules. Moreover, the as-prepared low-temperature phase Li 3 PS 4 -LiI has good resistance to dendrite growth and excellent compatibility with Li metal. The Li/electrolyte/Li symmetric battery exhibits ultra-durable cycle stability for 1350 h at 0.25 mA cm −2 . The details of influence rules of iodide introduction on the network and ions transmission are analyzed and proposed to explore the available electrolytes for all-solid-state battery.
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2018
·
IF 6.945
Dongjiu Xie,Shaojie Chen,Zhihua Zhang,Jie Ren,Lili Yao,Linbin Wu,Xiayin Yao,Xiaoxiong Xu
The combination of high conductivity and good stability against Li is not easy to achieve for solid electrolytes , hindering the development of high energy solid-state batteries . In this study, doped electrolytes of Li 3 P 1- x Sb x S 4-2.5 x O 2.5 x are successfully prepared via the high energy ball milling and subsequent heat treatment . Plenty of techniques like XRD , Raman, SEM, EDS and TEM are utilized to characterize the crystal structures, particle sizes, and morphologies of the glass-ceramic electrolytes. Among them, the Li 3 P 0.98 Sb 0.02 S 3.95 O 0.05 ( x = 0.02) exhibits the highest ionic conductivity (∼1.08 mS cm −1 ) at room temperature with an excellent stability against lithium. In addition, all-solid-state lithium batteries are assembled with LiCoO 2 as cathode, Li 10 GeP 2 S 12 /Li 3 P 0.98 Sb 0.02 S 3.95 O 0.05 as the bi-layer electrolyte, and lithium as anode. The constructed solid-state batteries delivers a high initial discharge capacity of 133 mAh g −1 at 0.1C in the range of 3.0–4.3 V vs. Li/Li + at room temperature, and shows a capacity retention of 78.6% after 50 cycles. Most importantly, the all-solid-state lithium batteries with the Li 10 GeP 2 S 12 /Li 3 P 0.98 Sb 0.02 S 3.95 O 0.05 electrolyte can be workable even at −10 °C. This study provides a promising electrolyte with the improved conductivity and stability against Li for the application of all-solid-state lithium batteries.
研究领域:
材料科学
·
电化学
·
固态电池
·
能源存储
·
无机非金属材料
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）