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Title: A Convenient and Versatile Method To Control the Electrode Microstructure toward High-Energy Lithium-Ion Batteries

Journal Article · · Nano Letters
 [1];  [2];  [3];  [1];  [1];  [1];  [2];  [1];  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Energy Technologies Area
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  3. Istanbul Technical Univ., Istanbul (Turkey). Energy Inst.

Control over porous electrode microstructure is critical for the continued improvement of electrochemical performance of lithium ion batteries. This paper describes a convenient and economical method for controlling electrode porosity, thereby enhancing material loading and stabilizing the cycling performance. Sacrificial NaCl is added to a Si-based electrode, which demonstrates an areal capacity of ~4 mAh/cm2 at a C/10 rate (0.51 mA/cm2) and an areal capacity of 3 mAh/cm2 at a C/3 rate (1.7 mA/cm2), one of the highest material loadings reported for a Si-based anode at such a high cycling rate. X-ray microtomography confirmed the improved porous architecture of the SiO electrode with NaCl. The method developed here is expected to be compatible with the state-of-the-art lithium ion battery industrial fabrication processes and therefore holds great promise as a practical technique for boosting the electrochemical performance of lithium ion batteries without changing material systems.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1426723
Journal Information:
Nano Letters, Vol. 16, Issue 7; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 26 works
Citation information provided by
Web of Science

References (16)

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Toward high specific capacity and high cycling stability of pure tin nanoparticles with conductive polymer binder for sodium ion batteries journal October 2014
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Conductive Polymer Binder for High-Tap-Density Nanosilicon Material for Lithium-Ion Battery Negative Electrode Application journal November 2015
Propylene Carbonate (PC)-Based Electrolytes with High Coulombic Efficiency for Lithium-Ion Batteries journal October 2013
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Effect of Fluoroethylene Carbonate (FEC) on the Performance and Surface Chemistry of Si-Nanowire Li-Ion Battery Anodes journal December 2011
Side-Chain Conducting and Phase-Separated Polymeric Binders for High-Performance Silicon Anodes in Lithium-Ion Batteries journal February 2015
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Cited By (10)

Hierarchically Multiporous Carbon Nanotube/Co 3 O 4 Composite as an Anode Material for High-Performance Lithium-Ion Batteries journal September 2018
Silicon oxides: a promising family of anode materials for lithium-ion batteries journal January 2019
Research progress regarding Si-based anode materials towards practical application in high energy density Li-ion batteries journal January 2017
A scalable slurry process to fabricate a 3D lithiophilic and conductive framework for a high performance lithium metal anode journal January 2019
Caging tin oxide in three-dimensional graphene networks for superior volumetric lithium storage journal January 2018
Advanced Lithium-Ion Batteries for Practical Applications: Technology, Development, and Future Perspectives journal July 2018
Systematic structural characterization of high‐density porous silicon anodes in lithium‐ion batteries journal August 2019
Thick Binder-Free Electrodes for Li-Ion Battery Fabricated Using Templating Approach and Spark Plasma Sintering Reveals High Areal Capacity journal January 2018
Strategies for Building Robust Traffic Networks in Advanced Energy Storage Devices: A Focus on Composite Electrodes journal December 2018
Safety Issues in Lithium Ion Batteries: Materials and Cell Design journal July 2019

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