3D Printed Hybrid Electrodes for Lithium-Ion Batteries

Abstract

A novel hybrid 3D structured electrode, with a high-aspect ratio, is fabricated via extrusion-based additive manufacturing to achieve high mass loading and combine the advantages offered by a conventional laminated structure and a 3D digital structure. This structure is designed to enhance interfacial reactions and species transport by utilizing the 3D structure. I wo key challenges in 3D structured electrodes are addressed, including solution preparation and scale-up. The paste is optimized with a high viscosity to avoid the typical complexity encountered in preparing a solution for 3D printing, and the proposed hybrid 3D structures can be easily added to the conventional laminated structures. This is demonstrated by using a CR2032 coin cell, which also solves the typical assembly problems that occur with 3D structured electrodes. This innovative design and fabrication process demonstrates high areal energy and power density, which are critical requirements for energy storage systems in transportation and stationary applications.

Meeting Name

231st ECS Meeting (2017: May 28-Jun. 1, New Orleans, LA)

Department(s)

Mechanical and Aerospace Engineering

Research Center/Lab(s)

Intelligent Systems Center

Second Research Center/Lab

Center for High Performance Computing Research

Keywords and Phrases

Aspect ratio; Electric batteries; Electrodes; Laminating; Lithium-ion batteries, Assembly problems; Digital structures; Energy storage systems; Fabrication process; High aspect ratio; Laminated structures; Solution preparations; Stationary applications, 3D printers

International Standard Book Number (ISBN)

978-160768539-5

International Standard Serial Number (ISSN)

1938-5862; 1938-6737

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2017 Electrochemical Society Inc., All rights reserved.

Publication Date

01 Jun 2017

Link to Full Text

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