home › event - modeling binder-free and carbon-free high energy density licoo2 electrodes for rechargeable lithium batteries

EVENT:

Modeling Binder-free and Carbon-free High Energy Density LiCoO2 Electrodes for Rechargeable Lithium Batteries
Conferences & Talks

Electrochemical Society (ECS) 224th Annual Meeting

30 October 2013
11:40am-12:00pm
Hilton San Francisco Union Square, San Francisco, California

 

description

Conventional thin electrodes, by volume, contain a large amount of electrochemically inactive materials, which lowers the overall energy capacity of a cell, making it difficult to realize high volumetric energy with thin electrode architectures. Researchers have been actively pursuing methods which will enable the fabrication and full utilization of ultra-thick electrodes (< 200µm) in order to mitigate the amount of inactive material required in a cell. One approach which has emerged is to fabricate low tortuosity sintered electrode structures. This paper aims to correlate John Newman’s macro-homogeneous porous electrode model to thick high energy density carbon-free and binder-free sintered electrode samples fabricated at Palo Alto Research Center (PARC) and prior art studies on solid phase diffusion behavior [5] and tortuosity in LiCoO2. Zhang et al. have shown that it is often difficult to correlate a macro-homogeneous electrode model across all C-rates. Often new model extensions are created to capture better correlation at slow and fast C-rates. This is more difficult when one is dealing with a new materials set. We examine how assumptions about tortuosity and diffusion effect model predictions across a range of C-rates. Our efforts focus on understanding the model parameters which can be used in Newman’s existing model without significant modification to the underlying equations.

 

upcoming events   view all 

Aston Martin: The Brand Journey of a 100 Year-old Startup
Mr. Simon Sproule
29 August 2016
PARC Forum  

A Low-cost and Innovative Radar “Digital Eye”
Bernard Casse
20 September 2016 - 22 September 2016 | Brussels, Belgium
Conferences & Talks  

Stanford and PARC host Digital Cities Summit 2016
Victoria Bellotti, Panel Facilitator, Bernard Casse, Panelist, Sean Garner, Panelist, Stephen Hoover, Keynote Speaker, Matthew Klenk, Tolga Kurtoglu, Panel Facilitator, Markus Larsson, Speaker, Ersin Uzun, Panelist
3 October 2016 - 4 October 2016 | Stanford, CA
Conferences & Talks