Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 15
·9581-9585
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IF 12.732
Yuemin Du,Yijie Liu,Sixie Yang,Chao Li,Zhu Cheng,Feilong Qiu,Ping He,Haoshen Zhou
The fossil fuel crisis and global warming are becoming more and more severe in this century, while the exploration of human survival on Mars is being pushed forward steadily. Hence, it is meaningful to effectively utilize CO2, the main greenhouse gas and a major component of the Martian atmosphere. Due to their high capacity and ability to capture CO2, Li–CO2 batteries have received much attention. However, there are problems that still need to be solved relating to Li–CO2 batteries, including the instability of the electrolyte and the non-negligible polarization caused by the formation and decomposition of Li2CO3. To address these issues, an all-solid-state Li–CO2 battery, which uses RuO2 nanoparticles combined with single-walled carbon nanotubes (SWCNTs) as the cathode material and a sodium super ionic conductor (NASICON)-type ceramic solid electrolyte, Li1.5Al0.5Ge1.5(PO4)3 (LAGP), has been developed and it operates over a broad temperature range. Under a pure CO2 atmosphere, this well-designed battery shows a discharge capacity of 2499 mA h g−1 and a charge capacity of 2137 mA h g−1 in the first cycle at 60 °C, and stable cycling performance over 30 cycles under a capacity limitation of 500 mA h g−1 at a current density of 50 mA g−1. This result enhances the possibility of the utilization of the Li–CO2 battery in the future.
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DOI
高影响因子
ChemElectroChem
·
2020
·Vol. 7
·期 19
·4093-4100
·
IF 4.154
Qing Wang,Yang Lu,Jun Jin,Chunhua Chen,Zhaoyin Wen
Graphical Closed borders : A Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 (LAGP) ceramic is adopted to block the migration of polysulfides in Li−S batteries, with solvent-in-salt wetting the electrode/ceramic interfaces. Owing to suppressed dissolution of polysulfides in SIS, the semi-solid-state Li−S batteries show superior capacity retention and long cycling life. Aimed at tackling the shuttle effect in lithium-sulfur (Li−S) batteries, a Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 (LAGP) ceramic is adopted to block the migration of polysulfides. However, the LAGP-based Li−S battery with liquid electrolyte wetting the interfaces still suffers from rapid capacity decay, as polysulfides tend to dissolve into liquid electrolyte and get firmly adsorbed by LAGP. In this work, a dual confinement effect for polysulfides is put forward, enabled by the LAGP ceramic and solvent-in-salt (SIS), wherein the SIS can greatly suppress the dissolution of polysulfides. Owing to the synergistic effect of SIS and LAGP, the semi-solid-state Li−S batteries show superior capacity retention and long cycling life. In particular, at a current density of 0.2 C, the Li−S battery with SIS-modified LAGP ceramic electrolyte delivers a high initial reversible capacity of 1251.7 mAh g −1 and long cycle life of over 250 cycles with a decay rate of only 0.07 % per cycle.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Jinhong Song,Chen Zhang,Zejian Zheng,Shizhe Huo,Yihan Lin,Fei Yang,Lei Liu
SnO 2 layer between Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 (LAGP) and lithium anode was prepared through simple scratch-coating process to improve interface properties. The physical phase, morphology, and electrochemical properties of Li/SnO 2 /LAGP structure were characterized by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, and electrochemical analytical methods. It was found that SnO 2 layer effectively improved the interface stability of LAGP and lithium anode. The prepared Li/SnO 2 /LAGP/SnO 2 /Li symmetric cell exhibited a large critical current density of 1.8 mA cm −2 and demonstrated excellent cycling characteristics. The polarization voltages of symmetric cell were 0.1 V and 0.8 V after 1000 h of cycling at current densities of 0.04 mA cm −2 and 0.5 mA cm −2 , respectively. Li/SnO 2 @LAGP/LiFePO 4 solid-state full cells were also assembled, exhibiting a discharge specific capacity of 150 mAh g −1 after 200 cycles at 0.1C with capacity retention rate of 96 %. The good interface properties of Li/SnO 2 /LAGP structure are attributed to the transformation of SnO 2 layer into a buffer layer containing Li 2 O, Sn 0 , and Li x Sn y alloy during cycling process, which effectively inhibits the reduction reaction between LAGP and lithium anode.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2020
·
IF 7.183
Yazhou Chen,Chen Li,Dezhan Ye,Yunfeng Zhang,Haifeng Bao,Hansong Cheng
Polymer electrolytes with single ion conducting behavior, high ion conductivity and fire-resistant play a vital role in suppressing lithium dendrite growth for high security, stability and high energy density of rechargeable lithium metal batteries (LMBs). Herein, we develop a gel single-ion composite electrolyte (SICE) by incorporating Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 nanoparticles into alternating diblock lithiated bis(benzene sulfonyl)imide polyanion with repeating ether groups. Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 nanoparticles can significantly endow SICE membrane more Li + transportation channels, which offers elevated ionic conductivity (8.3 × 10 −4 S cm −1 ) and Li + transference number (0.93) to promote homogenously Li + deposition in lithium foil for dendrite suppression. As a result, a highly reversible Li plating/stripping in a Li symmetric cell enables to run stably for at least 1600 h at 0.5 mA cm −2 . Furthermore, Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 nanoparticles increases the electrochemical window of SICE up to 4.6 V (vs. Li + /Li), meanwhile enhances the thermal stability and fire-resistance, and promotes fast electrolyte wetting. Accordingly, a single-ion conducting LiFePO 4 /Li cell assembled with optimized SICE membrane endowed a high capacity retention of 92.9% after 800 cycles at 1 C, superior to the commercial LiPF 6 /PP system. This work paves a scalable and deployable way for design of advanced single-ion conducting electrolyte membranes to develop secure and stable LMBs.
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高影响因子
Journal of Energy Storage
·
2026
·
IF 9.8
Kaiqi Wu,Chengjin Peng,Fanglin Wu,Liyuan Huang,Liang Lan,Liqiang Kang,Yecheng Liu,Xin Ao,Shan Fang
NASICON-type solid electrolytes exhibit substantial potential for application in all-solid-state lithium metal batteries (ASSLMBs) with a high energy density, attributed to their broad electrochemical window, high ionic conductivity, and excellent air stability. Nevertheless, the practical application is severely limited by inadequate chemical stability upon interaction with lithium metal. To address this challenge, a multifunctional interlayer was developed to suppress the detrimental reaction between Li metal and Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 (LAGP). The interlayer exhibits outstanding interfacial compatibility and minimized interfacial This interlayer was fabricated through the in-situ solidification of poly(ethylene glycol) methyl ether acrylate with cerium trifluoride, combined with ionic liquid (named as PCEIL). The interlayer exhibits outstanding interfacial compatibility and minimized interfacial resistance, which enables the Li|PCEIL-LAGP-PCEIL|Li symmetric battery to achieve stable cycling over 1000 h at 0.1 mA cm −2 without short-circuiting. Additionally, this interlayer enables superior performance in Li|PCEIL-LAGP-PCEIL|LiFePO 4 cells, with a remarkable capacity retention of 96.5 % after 250 cycles at 0.2C, and an impressive average Coulombic efficiency of 99.8 %. Therefore, this work provides effective strategies to stabilize NASICON-type solid electrolytes and lithium metal, promoting the development of high-performance ASSLMBs.
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产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2014
·
IF 5.211
Junli Shi,Yonggao Xia,Shaojie Han,Lifeng Fang,Meizi Pan,Xiaoxiong Xu,Zhaoping Liu
Since 5 V lithium ion batteries have attracted more and more attentions and are deemed to be an important tendency in the future, the matched design of the separators has also become a necessary and significant work. In this work, the lithium ionic conducting glass ceramic Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 -polypropylene (PP) based inorganic–organic composite separator (LAGP-PP) is prepared. Compared with the pristine PP separator, the LAGP-PP separator owns enhanced thermal stability and wettability . Meanwhile, the LAGP-PP separator shows higher ion conductivity than the traditional Al 2 O 3 coated PP separator due to the more facile lithium ion diffusion channels in the coating layer . The superior C-rate capacity and cyclability in the LiNi 0.5 Mn 1.5 O 4 based 5 V lithium ion batteries indicate that the LAGP-PP separator is a good alternative for the traditional inert inorganic ceramic coated polyolefin separators and is a kind of promising candidate separator for the high voltage lithium ion batteries.
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高影响因子
危险品化学品经营许可证（带存储）