Paper-Based Thin-Film Batteries

clipped from www.technologyreview.com A Salt and Paper Battery The simple, non-polluting battery could be used in compact devices. Researchers at Uppsala University in Sweden have made a flexible battery using two common, cheap ingredients: cellulose and salt. The lightweight, rechargeable battery uses thin pieces of paper--pressed mats of tangled cellulose fibers--for electrodes, while a salt solution acts as the electrolyte. clipped from pubs.acs.org Ultrafast All-Polymer Paper-Based Batteries clipped from www.altdotenergy.com The key to the discovery lies in the way in which the algae, Cladophora, produce a unique type of cellulose with a very large surface area (approximately 80 square meters of surface area per gram of material). clipped from personal.teknik.uu.se Nanotechnology and Functional Materials Welcome to the division for Nanotechnology and Functional Materials. We are a part of the Department for Engineering sciences and situated at the Ångström Laboratory. The division was established in 2004 and is headed by prof. Maria Strømme.

Sources:

1. Technology Review: A Salt and Paper Battery
2. Ultrafast All-Polymer Paper-Based Batteries - Nano Letters (ACS Publications)
3. Swedish Researchers Discover Algae-Based, Non-Metallic Batteries | Alt Dot Energy
4. Nanotechnology and Functional Materials

Related:

1. Batteries Made from Salt and Paper Could Replace Lithium : TreeHugger
2. Troublesome Green Algae Harnessed To Make Paper-Based Batteries
3. MPMN » Algae Enables Battery Breakthrough
4. Super-thin batteries made from paper and algae
5. Technology Review: Safer, Longer-Lasting Batteries
6. Printed Electronics World: Thin-film salt and paper battery
7. Welcome to Oak Ridge Micro-Energy, Inc.

New Battery Charges in Seconds

Clipped from: Breakthrough battery can charge up in seconds - Times Online

Breakthrough battery can charge up in seconds

The days of waiting hours to charge a mobile phone or laptop computer could soon be over because of research that could transform battery technology in as little as two years.

Scientists in the United States have invented a battery that can charge in seconds, promising a revolution in power storage that could also help green cars and renewable energy.

Clipped from: DMSE News and Events » Prof. Ceder publishes developments in rechargeable battery technology

Prof. Ceder publishes developments in rechargeable battery technology

MIT engineers have created a kind of beltway that allows for the rapid transit of electrical energy through a well-known battery material, an advance that could usher in smaller, lighter batteries — for cell phones and other devices — that could recharge in seconds rather than hours.

The work could also allow for the quick recharging of batteries in electric cars, although that particular application would be limited by the amount of power available to a homeowner through the electric grid.

The work, led by Gerbrand Ceder, the Richard P. Simmons Professor of Materials Science and Engineering, is reported in the March 12 issue of Nature.

Clipped from: Re-engineered battery material could lead to rapid recharging of many devices - MIT News Office

... creating a new surface structure that does allow the lithium ions to move quickly around the outside of the material, much like a beltway around a city. When an ion traveling along this beltway reaches a tunnel, it is instantly diverted into it. Kang is a coauthor of the Nature paper.

Using their new processing technique, the two went on to make a small battery that could be fully charged or discharged in 10 to 20 seconds (it takes six minutes to fully charge or discharge a cell made from the unprocessed material).

A sample of the new battery material that could allow quick charging of portable devices.


Scanning electron micrograph of a particle of the new battery material. Dark area indicates the inside of the particle surrounded by a lighter surface layer only five nanometers wide.

Related:
Breakthrough battery can charge up in seconds - Times Online
DMSE News and Events » Prof. Ceder publishes developments in rechargeable battery technology
Re-engineered battery material could lead to rapid recharging of many devices - MIT News Office
Lithium batteries charge ahead : Nature News
Quicker battery charge holds promise for plug-in cars
MIT engineers remodel the Li-ion battery to recharge in a matter of seconds
A Better Battery? The Lithium Ion Cell Gets Supercharged: Scientific American
Building a better battery - Cosmic Log - msnbc.com