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Charge carrier transport and electrochemical stability of Li2O doped glassy ceramics
Materials Science and Engineering: B ( IF 3.6 ) Pub Date : 2020-07-08 , DOI: 10.1016/j.mseb.2020.114612
Amartya Acharya , Koyel Bhattacharya , Chandan Kumar Ghosh , Achintesh Narayan Biswas , Sanjib Bhattacharya

We study electrical conductivity of new Li2O doped glassy ceramics in wide frequency and temperature regime not only for their applicability in various fields like lithium ion conductors but also for academic interest. Here, we employ “Jonscher’s power law model and Almond-West formalism” to interpret mixed conduction process in the present system. We use “Mott’s variable range hopping” model to analyse low temperature DC conductivity data. It also points that the ratio of power law pre-factor to the exponent (–log10 A/S) indicates temperature independency and strong composition dependency of present conductors. Higher lithium content in the composition may disturb “electrochemical stability” of the present system. We do believe that these glassy ceramics are suitable candidates for lithium ion battery application with lower lithium content.



中文翻译:

Li 2 O掺杂玻璃态陶瓷的电荷载流子传输和电化学稳定性

我们研究了新型Li 2 O掺杂的玻璃陶瓷在宽频率和温度范围内的电导率,这不仅是因为它们在各种领域(如锂离子导体)中的适用性,而且还出于学术兴趣。在这里,我们采用“琼斯的幂定律模型和Almond-West形式主义”来解释本系统中的混合传导过程。我们使用“莫特可变范围跳变”模型来分析低温直流电导率数据。它还指出,幂律因子与指数的比率(–log 10A / S)表示当前导体的温度无关性和强烈的成分依赖性。组合物中较高的锂含量可能会干扰本系统的“电化学稳定性”。我们确实相信这些玻璃状陶瓷适合锂含量较低的锂离子电池应用。

更新日期:2020-07-08
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