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A lightweight and metal-free current collector for battery anode applications

Journal Article · · Journal of Energy Storage

The requirement for high energy density batteries is driving the development of high-capacity electrode materials while reducing the amount of inactive battery components such as separators, binders, and current collectors. Though current collectors are an inactive component, they are still required for successful working of a battery cell. Conventional current collectors include aluminum foil for cathode and copper foil for anode. Copper foil is quite heavy (8.7 mg/cm2) for 10μm thickness. Therefore, there is a need for a lightweight current collector for anode applications. In this work, a metal-free current collector comprised of aligned carbon fiber (CFs) layer filled with carbon nanotubes (CNTs) mixed in polymer (P) is developed to be used as a current collector for anodes. Further, anodes coated on the CF-CNT-P showed lower charge transfer resistance and improved rate capability compared with the anodes fabricated on conventional copper foil-based current collectors. The CF-CNT-P are lighter (≈1.5 mg/cm2) than the commonly used copper foil (8.7 mg/cm2), which will increase the gravimetric energy density.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Materials & Manufacturing Technologies Office (AMMTO)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
2281979
Journal Information:
Journal of Energy Storage, Journal Name: Journal of Energy Storage Vol. 79; ISSN 2352-152X
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (29)

Fast Charging of Lithium‐Ion Batteries: A Review of Materials Aspects journal July 2021
Toward Low-Cost, High-Energy Density, and High-Power Density Lithium-Ion Batteries journal June 2017
High-Energy Batteries: Beyond Lithium-Ion and Their Long Road to Commercialisation journal April 2022
The state of understanding of the lithium-ion-battery graphite solid electrolyte interphase (SEI) and its relationship to formation cycling journal August 2016
Three-dimensional micron-porous graphene foams for lightweight current collectors of lithium-sulfur batteries journal April 2019
Temperature and strain rate dependent behavior of polymer separator for Li-ion batteries journal April 2018
Multifunctional approaches for safe structural batteries journal August 2021
Lithium-ion battery fast charging: A review journal August 2019
Low-cost, lightweight electrodes based on carbon fibers as current collectors for aluminum-ion batteries journal September 2019
Aligned carbon fibers-carbon nanotube-polymer-based composite as lithium-ion battery current collector journal September 2023
Materials processing for lithium-ion batteries journal March 2011
What makes lithium substituted polyacrylic acid a better binder than polyacrylic acid for silicon-graphite composite anodes? journal April 2018
Li-ion battery materials: present and future journal June 2015
Recovery of cathode materials and Al from spent lithium-ion batteries by ultrasonic cleaning journal December 2015
From Materials to Cell: State-of-the-Art and Prospective Technologies for Lithium-Ion Battery Electrode Processing journal October 2021
A reflection on lithium-ion battery cathode chemistry journal March 2020
Future generations of cathode materials: an automotive industry perspective journal January 2015
Carbon fibers as three-dimensional current collectors for silicon/reduced graphene oxide lithium ion battery anodes with improved rate performance and cycle life journal January 2018
Polymer reinforced carbon fiber interfaces for high energy density structural lithium-ion batteries journal January 2020
Electrochemical behavior and passivation of current collectors in lithium-ion batteries journal January 2011
Degradation in lithium ion battery current collectors journal July 2021
Investigation of carbon fiber anode materials for collector-free lithium-ion batteries journal February 2022
Carbon Fiber Paper Cathodes for Lithium Ion Batteries journal January 2010
Matrix and interface microcracking in carbon fiber/polymer structural micro-battery journal April 2019
Batteries Safety: Recent Progress and Current Challenges journal September 2019
A Comparative Review on Energy Storage Systems and Their Application in Deregulated Systems journal September 2022
Review of the Design of Current Collectors for Improving the Battery Performance in Lithium-Ion and Post-Lithium-Ion Batteries journal May 2020
First-Principles Study on the Adsorption and Dissociation of Impurities on Copper Current Collector in Electrolyte for Lithium-Ion Batteries journal July 2018
Electrospun 3D Structured Carbon Current Collector for Li/S Batteries journal April 2020

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