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composite anode material
相关语句
  复合负极材料
     Systhesis and electrochemical performance of SnSb composite anode material
     SnSb复合负极材料的合成和电化学性能
短句来源
     Obtained SiAl/C composite anode material has a capacity about 600mAh/g for its first Li+ insertion and its coulombic efficiency for the first cycle is up to 85%. And after 25 cycles, its capacity retention can be retained about 90%.
     制备的复合负极材料首次可逆容量达到600mAh/g,首次充放电效率在85%以上,25次循环后容量仍保持90%以上.
短句来源
     SnSb composite anode material for Li-ion batteries was synthesized by reduction precipitation method.
     采用液相化学还原法,制备了锂离子电池用SnSb复合负极材料
短句来源
  “composite anode material”译为未确定词的双语例句
     Studies on a Multielement Composite Anode Material for SOFC
     多元SOFC阳极复合材料研究
  相似匹配句对
     Magnetostrictive Composite Material
     粉末冶金粘结磁致伸缩材料
短句来源
     Malimo Composite Material
     生产复合材料的针织缝编技术
短句来源
     Systhesis and electrochemical performance of SnSb composite anode material
     SnSb复合负极材料的合成和电化学性能
短句来源
     Studies on a Multielement Composite Anode Material for SOFC
     多元SOFC阳极复合材料研究
     Material
     实验材料
短句来源
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  composite anode material
The carbon coating offers buffering and conductive actions on the anode active material and thereby enhances the electrochemical behavior of carbon coated Cu6Sn5 alloy/graphite composite anode material.
      
A novel composite anode material consisted of electrodeposited Cu-Sn alloy dispersing in a conductive micro-porous carbon membrane coated on Cu current collector was investigated.
      
A new Li4Ti5O12-SnO2 composite anode material for lithium-ion batteries has been prepared by loading SnO2 on Li4Ti5O12 to obtain composite material with improved electrochemical performance relative to Li4Ti5O12 and SnO2.
      
The nanosized Si composite anode material was obtained after the pyrolysis of the mixture at 300?°C where the pyrolyzed PAN provided a conductive matrix to relieve the morphological change of Si during cycling.
      
Synthesis of nanosized Si composite anode material for Li-ion batteries
      
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The preparation of a novel natural graphite based anode material coated with iron hydroxide has been studied. The sample was analyzed using X ray diffractometer (XRD), scanning electron microscope (SEM) and differential thermal analysis, thermogravimetric analysis (DTA TGA), and its charge/discharge behaviors were measured. The mechanism of lithium intercalation into the material was anslyzed in terms of its structure, charge/discharge performance and Li + intercalation/ deintercalation reversibility....

The preparation of a novel natural graphite based anode material coated with iron hydroxide has been studied. The sample was analyzed using X ray diffractometer (XRD), scanning electron microscope (SEM) and differential thermal analysis, thermogravimetric analysis (DTA TGA), and its charge/discharge behaviors were measured. The mechanism of lithium intercalation into the material was anslyzed in terms of its structure, charge/discharge performance and Li + intercalation/ deintercalation reversibility. The results show that the iron hydroxide is uniformily distributed and that the iron hydroxide at the edge of the graphite reacted with Li + during the first discharge process to form a SEI film. The coating and the SEI film fix the graphene to prevent its slippage and exfoliation. This composite anode material has high capacity, excellent lithium intercalation reversibility and high the first charge/discharge cycle efficiency. Its reversible specific capacity is over 350 mA·h/g at 0.225mA/cm 2 charge/discharge current in 1mol/L LiPF 6 (volume ratio of EC and DEC is 3∶7).

合成并研究了一种包覆一层氢氧化铁的天然石墨材料 ,它可作为一种新型锂离子电池负极材料。对其电化学性能测试表明 ,当所用电解质为 1m ol/L L i PF6 (EC与 DEC的体积比为 3:7)以 0 .2 5 5 m A.cm- 2充放电时 ,其可逆比容量可超过 35 0 m Ah.g- 1 ,并且具有较好的循环性能。对这种材料进行了 X光衍射分析 (XRD) ,扫描电镜测量 (SEM) ,差重 -热重分析 (DTA- TGA)。从材料的结构、充放电特性和可逆性等方面 ,对锂在该包覆型碳材料中的嵌入机理进行了初步探讨。对该材料的结构分析表明所包覆的氢氧化铁分布较为均匀 ,特别是在天然石墨的端面上包覆的氢氧化铁及其在第一次充放电期间与锂反应生成的固体电解质界面 (SEI)膜 ,能够固定石墨片 ,防止其发生滑移和剥落 ,从而对材料的电化学性能产生良好的影响

The graphitized mesocarbon microbeads from Shanshan Company (SSCMCMB) were treated with phenol formaldehyde resin as coating agent to prepare composite anode materials, which involves liquid-phase-impregnation, cure and carbonization steps. The surface-treated SSGMCMB were used as the negative electrode for lithium ion batteries, of which the surface morphology, structure and charge-discharge performance were investigated using SEM, XRD and gal-vanostatic charge-discharge experiments. The results show...

The graphitized mesocarbon microbeads from Shanshan Company (SSCMCMB) were treated with phenol formaldehyde resin as coating agent to prepare composite anode materials, which involves liquid-phase-impregnation, cure and carbonization steps. The surface-treated SSGMCMB were used as the negative electrode for lithium ion batteries, of which the surface morphology, structure and charge-discharge performance were investigated using SEM, XRD and gal-vanostatic charge-discharge experiments. The results show that the pyrolytic carbon released from the pyrolysis of resin could cover MCMB satisfactorily, and at the same time, keep its spherical morphology intact, which help to improve lithium ion insert ion/deinsertion performance of SSGMCMB, i. e. the electrochemical performance of the composites, and to some degree overcome the large voltage lag problem of phenol formaldehyde resin pyrolyzed carbon.

以中间相沥青炭微球(SSGMCMB)为核、酚醛树脂(PR)热解炭为壳,采用浸渍-固化-炭化手段制备出树脂热解炭包覆SSGMCMB复合材料,并对其电化学性能进行了研究。通过SEM、XRD、恒电流充放电测试等手段研究了不同树脂包覆量对该复合材料的形态、结构及其电化学行为的影响,结果表明:树脂热解炭对SSGMCMB有较好的包覆作用,保持了SSGMCMB的球形形态,有利于锂离子的嵌入/脱出反应,对其电化学性能有一定的提高,改进了酚醛树脂热解炭有较大电压滞后的问题。

High capacity anode material SiAl/C composite was prepared by thermal annealing process. Its structure was characterized by XRD and its cyclability and potentiostatic cycling performance were investigated. The charging and discharging test shows SiAl/C composite possesses higher capacity than carbonaceous mesophase spherules. And its first irreversible capacity is decreased, comparing with Si/C composite prepared under the same conditions. It is demonstrated that by adding Al into Si/C composite system, its...

High capacity anode material SiAl/C composite was prepared by thermal annealing process. Its structure was characterized by XRD and its cyclability and potentiostatic cycling performance were investigated. The charging and discharging test shows SiAl/C composite possesses higher capacity than carbonaceous mesophase spherules. And its first irreversible capacity is decreased, comparing with Si/C composite prepared under the same conditions. It is demonstrated that by adding Al into Si/C composite system, its first Li+ insertion depth is suppressed and voltage hysteresis is alleviated. Obtained SiAl/C composite anode material has a capacity about 600mAh/g for its first Li+ insertion and its coulombic efficiency for the first cycle is up to 85%. And after 25 cycles, its capacity retention can be retained about 90%.

锂离子电池用高容量负极材料普遍存在首次不可逆容量高、循环性能差等问题.本文采用高温固相法制备了硅铝/碳锂离子电池负极材料,制备出的复合负极材料的比容量远高于目前锂离子电池普遍使用的中间相碳微球,循环寿命则优于同粒度的硅单体为活性中心的硅碳复合材料. Al引入Si/C复合材料中,有效抑制了材料的首次嵌锂深度,且减缓了电压滞后现象.制备的复合负极材料首次可逆容量达到600mAh/g,首次充放电效率在85%以上,25次循环后容量仍保持90%以上.

 
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