Innovations in Paper-based Flexible Batteries

A special issue of Batteries (ISSN 2313-0105).

Deadline for manuscript submissions: closed (30 April 2018) | Viewed by 9836

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Guest Editor
Integrated Nanosystems Development Institute (INDI), Purdue School of Engineering and Technology, IUPUI, Indianapolis, IN 46202, USA
Interests: nanotechnology; sensors; flexible batteries and electronic systems; Internet of Things; STEM Research and Education
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Special Issue Information

Dear Colleagues,

According to a recent forecast, the thin and flexible battery market will reach $460 million by 2026. In order to meet the industry demand, major innovations are needed in flexible battery technologies. In recent years, Li-ion batteries have been leading the usage in portable devices despite their longevity and some safety issues. One of the primary reasons is that the Li-ion batteries have higher energy density in terms of the weight and the size of a Li-ion battery compared to others. Yet a battery in a portable electronic device constitutes a significant portion of the total device weight and restrict them to certain applications. These reasons, as well the pursuit for more light-weight and cost-effective battery technologies have been the source of encouragement for the investigation of flexible batteries. Different varieties of light-weight and flexible battery technologies, such as plastic-based, polymer-based, and paper-based battery are being developed. Due to safety, as well as flexible reasons, paper-based batteries, one of the newest, has been considered the most promising technology and will be the focus of this Special Issue.

Prof. Mangilal Agarwal
Guest Editor

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Keywords

  • Flexible Battery
  • Li-ion Battery
  • Paper-based Battery
  • Flexible Battery
  • Solid Electrolyte
  • Battery Packaging
  • Battery Safety
  • Wearable Power
  • Printable Battery

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Published Papers (1 paper)

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Research

13 pages, 18944 KiB  
Article
Flexible and Lightweight Lithium-Ion Batteries Based on Cellulose Nanofibrils and Carbon Fibers
by Huiran Lu, Johan Hagberg, Göran Lindbergh and Ann Cornell
Batteries 2018, 4(2), 17; https://doi.org/10.3390/batteries4020017 - 2 Apr 2018
Cited by 13 | Viewed by 9059
Abstract
Flexible, low-weight electrodes with integrated current collectors based on chopped polyacrylonitrile carbon fibers (CF) were produced using an easy, aqueous fabrication process, where only 4 wt% of TEMPO-oxidized cellulose nanofibrils (CNF) were used as the binder. A flexible full cell was assembled based [...] Read more.
Flexible, low-weight electrodes with integrated current collectors based on chopped polyacrylonitrile carbon fibers (CF) were produced using an easy, aqueous fabrication process, where only 4 wt% of TEMPO-oxidized cellulose nanofibrils (CNF) were used as the binder. A flexible full cell was assembled based on a LiFePO4 (LFP) positive electrode with a CF current collector and a current collector-free CF negative electrode. The cell exhibited a stable specific capacity of 121 mAh g−1 based on the LFP weight. The CF in the negative electrode acted simultaneously as active material and current collector, which has a significant positive impact on energy density. Stable specific capacities of the CF/CNF negative electrode of 267 mAh g−1 at 0.1 C and 150 mAh g−1 at 1 C are demonstrated. The LFP/CNF with CF/CNF, as the current collector positive electrode (LFP-CF), exhibited a good rate performance with a capacity of ~150 mAh g−1 at 0.1 C and 133 mAh g−1 at 1 C. The polarization of the LFP-CF electrode was similar to that of a commercial Quallion LFP electrode, while much lower compared to a flexible LFP/CNF electrode with Al foil as the current collector. This is ascribed to good contact between the CF and the active material. Full article
(This article belongs to the Special Issue Innovations in Paper-based Flexible Batteries)
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