Unexpectedly high energy density of a Li-Ion battery by oxygen redox in LiNiO2 cathode: First-principles study

2019 ◽  
Vol 294 ◽  
pp. 166-172 ◽  
Author(s):  
Daehyeon Choi ◽  
Joonhee Kang ◽  
Byungchan Han
Keyword(s):  
Energy Density ◽  
First Principles ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Battery ◽  
First Principles Study ◽  
Li Ion

Characterising local environments in high energy density Li-ion battery cathodes: a combined NMR and first principles study of LiFexCo1−xPO4

2014 ◽  
Vol 2 (30) ◽  
pp. 11948-11957 ◽  
Author(s):  
Fiona C. Strobridge ◽  
Derek S. Middlemiss ◽  
Andrew J. Pell ◽  
Michal Leskes ◽  
Raphaële J. Clément ◽  
...  
Keyword(s):  
Energy Density ◽  
Dft Calculations ◽  
First Principles ◽  
Nmr Spectra ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Battery ◽  
First Principles Study ◽  
Local Environments ◽  
Li Ion

DFT calculations are used to assign and rationalise the local environments in the 31P NMR spectra of LiFexCo1−xPO4.

A Ventilation Cooling Solution to Improve Thermal Environment of High Energy Density Li-Ion Battery Packs

2015 ◽  
Author(s):  
Zhiqiang Li ◽  
Xiaowei Fan ◽  
Fang Wang ◽  
Dasi He ◽  
Shifei Wei
Keyword(s):  
Energy Density ◽  
Thermal Environment ◽  
High Energy ◽  
High Energy Density ◽  
Temperature Fields ◽  
Maximum Temperature ◽  
Li Ion Battery ◽  
Battery System ◽  
Li Ion ◽  
Battery Cells

This paper focuses on the cooling solution to a high energy density and large capacity Li-ion battery system which consist of four packs of 26650 cells. The cooling measure is a critical technology for many Li-ion battery systems especially that designed for hybrid electric vehicles, in which, high energy density within a limited space is very common in these systems. Both the safety and efficiency of Li-ion battery cells rely on the temperature which is under control of the battery thermal management system. In this study, temperature fields within battery boxes are simulated with the computational fluid dynamic (CFD) method. With the help of an airconditioner, a cooling solution is proposed for a relatively large dimensional, high energy density Li-ion battery cells array using by vehicles. Through the proposed solution, the maximum single-cell temperature is restricted to a reasonable level, and the maximum temperature difference throughout the battery system is also improved.

The intriguing question of anionic redox in high-energy density cathodes for Li-ion batteries

2016 ◽  
Vol 9 (3) ◽  
pp. 984-991 ◽  
Author(s):  
M. Saubanère ◽  
E. McCalla ◽  
J.-M. Tarascon ◽  
M.-L. Doublet
Keyword(s):  
Energy Density ◽  
Dft Calculations ◽  
First Principles ◽  
High Energy ◽  
High Energy Density ◽  
Atomic Charges ◽  
Li Ion Batteries ◽  
Redox Mechanism ◽  
Orbital Interactions ◽  
Li Ion

This paper aims to identify robust descriptors to rationalize the anionic redox mechanism in layered Li-rich TM-oxides using conceptual tools, such as atomic charges, orbital interactions and crystal orbital overlap populations (COOP), based on first-principles DFT calculations.

scholarly journals Structure Evolution and Thermal Stability of High-Energy- Density Li-Ion Battery Cathode Li2VO2F

2017 ◽  
Vol 164 (7) ◽  
pp. A1552-A1558 ◽  
Author(s):  
Xiaoya Wang ◽  
Yiqing Huang ◽  
Dongsheng Ji ◽  
Fredrick Omenya ◽  
Khim Karki ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Structure Evolution ◽  
Li Ion Battery ◽  
Li Ion ◽  
Thermal Stability Of

Sn-Based Nanocomposite for Li-Ion Battery Anode with High Energy Density, Rate Capability, and Reversibility

ACS Nano ◽  
2018 ◽  
Vol 12 (3) ◽  
pp. 2955-2967 ◽  
Author(s):  
Min-Gu Park ◽  
Dong-Hun Lee ◽  
Heechul Jung ◽  
Jeong-Hee Choi ◽  
Cheol-Min Park
Keyword(s):  
Energy Density ◽  
Rate Capability ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Battery ◽  
Li Ion ◽  
Battery Anode ◽  
Density Rate
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