Parameter-Free Gradient Correction for Positron States in Oxides

2017 ◽  
Vol 373 ◽  
pp. 35-40 ◽  
Author(s):  
Jan Kuriplach ◽  
Bernardo Barbiellini
Keyword(s):  
High Temperature ◽  
Positron Lifetime ◽  
High Temperature Superconductors ◽  
Computational Method ◽  
Li Ion Battery ◽  
Empirical Parameter ◽  
Positron States ◽  
Electron Positron ◽  
Li Ion ◽  
Gradient Correction

Recently, the theory of gradient-corrected electron-positron correlations in solids was improved and extended in order to avoid the adjustable, empirical parameter α which is now part of theory and a smooth function of the electron density.This new, parameter-free approach is applied to selected oxides in order to discuss their interstitial space morphology reflected by the positron charge distribution. In addition, the positron lifetime and affinity are calculated using a highly precise computational method. An attempt is made to correlate these quantities with the volume of the reduced formula unit.The results for some oxides - such as Li-ion battery cathode materials and high temperature superconductors - are discussed in detail and prospects for future experiments are given.

Cationic covalent organic framework based all-solid-state electrolytes

2020 ◽  
Vol 4 (4) ◽  
pp. 1164-1173 ◽  
Author(s):  
Zhen Li ◽  
Zhi-Wei Liu ◽  
Zhen-Jie Mu ◽  
Chen Cao ◽  
Zeyu Li ◽  
...  
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Solid Electrolytes ◽  
Lithium Ion ◽  
Ion Conductivity ◽  
Li Ion Battery ◽  
Covalent Organic Framework ◽  
Li Ion ◽  
Lithium Ion Conductivity ◽  
Organic Framework

Two new imidazolium-based cationic COFs were synthesized and employed as all-solid electrolytes, and exhibited high lithium ion conductivity at high temperature. The assembled Li-ion battery displays preferable battery performance at 353 K.

A high temperature operating nanofibrous polyimide separator in Li-ion battery

2013 ◽  
Vol 232 ◽  
pp. 44-48 ◽  
Author(s):  
Wen Jiang ◽  
Zhihong Liu ◽  
Qingshan Kong ◽  
Jianhua Yao ◽  
Chuanjian Zhang ◽  
...  
Keyword(s):  
High Temperature ◽  
Li Ion Battery ◽  
Temperature Operating ◽  
Li Ion

Enhanced High-Temperature Stability of Li-Ion Battery with Li-Rich Oxide Cathode By Localized High-Concentration Electrolyte

2020 ◽  
Vol MA2020-02 (1) ◽  
pp. 149-149
Author(s):  
Xianhui Zhang ◽  
Hao Jia ◽  
Yaobin Xu ◽  
Lianfeng Zou ◽  
Mark H Engelhard ◽  
...  
Keyword(s):  
High Temperature ◽  
Temperature Stability ◽  
Li Ion Battery ◽  
High Temperature Stability ◽  
High Concentration ◽  
Oxide Cathode ◽  
Li Ion

MOFs-derived porous Mn2O3 as high-performance anode material for Li-ion battery

2015 ◽  
Vol 3 (10) ◽  
pp. 5266-5269 ◽  
Author(s):  
Zhongchao Bai ◽  
Yaohui Zhang ◽  
Yuwen Zhang ◽  
Chunli Guo ◽  
Bin Tang ◽  
...  
Keyword(s):  
High Temperature ◽  
Anode Material ◽  
High Performance ◽  
Metal Organic Framework ◽  
Li Ion Battery ◽  
Metal Organic ◽  
Li Ion ◽  
High Temperature Calcination ◽  
Organic Framework

MOFs-derived porous Mn2O3 have been synthesized by the high-temperature calcination of a metal–organic framework, [Mn(Br4-bdc)(4,4′-bpy)(H2O)2]n (Br4-bdc = tetrabromoterephthalate and 4,4′-bpy = 4,4′-bipyridine).

Li-ion battery shut-off at high temperature caused by polymer phase separation in responsive electrolytes

2015 ◽  
Vol 51 (25) ◽  
pp. 5448-5451 ◽  
Author(s):  
Jesse C. Kelly ◽  
Nicholas L. Degrood ◽  
Mark E. Roberts
Keyword(s):  
Phase Separation ◽  
High Temperature ◽  
Constant Current ◽  
Li Ion Battery ◽  
Polymer Phase ◽  
Discharge Characteristics ◽  
Current Discharge ◽  
Thermally Responsive ◽  
Li Ion

Schematic of LTO/LFP battery with a thermally responsive electrolyte. The constant current discharge characteristics are shown at low and high temperature. The insets show the phase of the polymer in the cell at each temperature.

Sign in / Sign up

Export Citation Format

Share Document