3-2xB1-xNxO3(x=0.1,0.2,0.3)鋰離子固體電解質(zhì),通過無壓燒結(jié)制備得到固體電解質(zhì)片,并通過x射線衍射(XRD),掃描電子顯微鏡(SEM),電化學(xué)交流阻抗(EIS)對(duì)Li3-2xB1-xNxO3(x=0.1,0.2,0.3)固態(tài)電解質(zhì)進(jìn)行了表征。結(jié)果表明：當(dāng)x=0.2時(shí),采用無壓燒結(jié)在600℃燒結(jié)10 h制備得到的固體電解質(zhì)片致密度最高,達(dá)到理論密度的90.07%,室溫鋰離子總電導(dǎo)率也最大,為6.37×10-6 S/cm,此時(shí)激活能值最小,為0.48eV。"/>

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Li3-2xB1-xNxO3(x=0.1,0.2,0.3)鋰離子固體電解質(zhì)的制備和性能研究
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陜西省工業(yè)科技攻關(guān)項(xiàng)目(項(xiàng)目號(hào)2016GY-170)


Preparation and characterization of Li3-2xB1-xNxO3(x=0.1,0.2,0.3)solid electrolytes
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    摘要:

    首次以硝酸鋰、碳酸鋰、氧化硼為原料,采用固相法制備得到了Li3-2xB1-xNxO3(x=0.1,0.2,0.3)鋰離子固體電解質(zhì),通過無壓燒結(jié)制備得到固體電解質(zhì)片,并通過x射線衍射(XRD),掃描電子顯微鏡(SEM),電化學(xué)交流阻抗(EIS)對(duì)Li3-2xB1-xNxO3(x=0.1,0.2,0.3)固態(tài)電解質(zhì)進(jìn)行了表征。結(jié)果表明：當(dāng)x=0.2時(shí),采用無壓燒結(jié)在600℃燒結(jié)10 h制備得到的固體電解質(zhì)片致密度最高,達(dá)到理論密度的90.07%,室溫鋰離子總電導(dǎo)率也最大,為6.37×10-6 S/cm,此時(shí)激活能值最小,為0.48eV。

    Abstract:

    Samples of Li3-2xB1-xNxO3(x=0.1,0.2,0.3)compound with pure phase were obtained by coprecipitation method at the first time.Lithium nitrate, lithium carbonate and boron oxide were as the raw materials.The Li3-2xB1-xNxO3(x=0.1,0.2,0.3)precursor powders were sintered via pressureless sintering.And Li3-2xB1-xNxO3(x=0.1,0.2,0.3)solid electrolytes were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS). The results show that samples Li2.6B0.8N0.2O3 sintered at 600℃ by the non pressure sintering showed the highest total conductivity of 6.37×10-6S/cm.The activation energy is 0.48 eV at 250~390K. And its density is the reaching 90.07% of theoretical density.

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. Li3-2xB1-xNxO3(x=0.1,0.2,0.3)鋰離子固體電解質(zhì)的制備和性能研究[J].稀有金屬材料與工程,2018,47(12):3835~3836.[. Preparation and characterization of Li3-2xB1-xNxO3(x=0.1,0.2,0.3)solid electrolytes[J]. Rare Metal Materials and Engineering,2018,47(12):3835~3836.]
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  • 收稿日期:2017-03-21
  • 最后修改日期:2017-05-15
  • 錄用日期:2017-11-08
  • 在線發(fā)布日期: 2019-01-04
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