【摘 要】
：
Sn-Cu alloy anode was prepared by pulsed electrodeposition for lithium ion batteries, and its electrochemical performance was tested at Iow temperature. When te
【机 构】
：
Materials Chemistry Lab
论文部分内容阅读
Sn-Cu alloy anode was prepared by pulsed electrodeposition for lithium ion batteries, and its electrochemical performance was tested at Iow temperature. When temperature decreased from 25℃ to -20℃, the Sn-Cu alloy anode provided the capacity retentions of 76% in the electrolyte of 1 mol/L LiBF4/EC+EMC+γBL and 51% in the electrolyte of 1 mol/L LiPF6/EC+DMC+DEC. Under the same conditions, the graphite anode presented the capacity retentions of only 41% and 18%, respectively. The Sn-Cu alloy anode showed better performance in the electrolyte of 1 mol/L LiBF4/EC+EMC+γBL than in the electrolyte of 1 mol/L LiPF6/EC+DMC+DEC, and kept much higher capacity retention than that of graphite at -20℃. The Sn-Cu alloy anode in the electrolyte of 1 mol/L LiBF4/EC+EMC+γBL (1:1:1, volume ratio) is promising for Iow temperature application of lithium batteries.
其他文献
A new linear integration was developed. First, effective strain rate for slab forging with bulge was expressed in terms of two-dimensional strain rate vector, a
The anomalous photovoltaic effect was studied in epitaxial La0.8Sr0.2MnO3 films by laser molecular beam epitaxy. It is demonstrated that the signal polarity is
Eu-doped silicate complex gel nano-particles was obtained by sol-gel process and characterized with TEM, XRD, PL, etc. The well dispersed particles have particl
The evolution of phase compositions, phase change and microstructure in Sm2Fe17 alloys during hydrogenation-disproportion process were systematically studied wi
以某造纸企业废水治理工程为研究对象。具体介绍了“混凝气浮一生物接触氧化法”工艺的具体流程和技术特点，实践表明：该工艺具有一定的先进性，处理后水能达到国家污水二级排放标
The surface modification of magnesium alloys (AZ31 and AZ91HP) was studied by a high current pulsed electron beam(HCPEB). The results show that the cross-sectio
A survey of solder ball production processes especially focusing on disturbed molten metal jet breakup process was made. Then the formation of capillary wave on
The sliding wear behaviors of ZrO2-22 wt pct MgO (MZ) and ZrO2-8 wt pct Y2O3 (YZ) coatings deposited on a cast aluminum alloy with bond layer (NiCrCoAlY) by pla
Mixed Al-Si and Al-Cu powders were investigated as insert layers to reactive diffusion bond SiCp/6063 metal matrix composite (MMC). The results show that SiCp/6
A multiphase NiAl-28Cr-5.85Mo-0.15Hf alloy, which was directionally solidified (DS) in an Al2O3-SiO2 mold by standard Bridgman method and then underwent prolong