Some of the 300 million tires discarded each year in the United States alone could be used in supercapacitors for vehicles and the electric grid using a technology developed at the Department of Energy’s Oak Ridge National Laboratory and Drexel University.
By employing proprietary pretreatment and processing, a team led by Parans Paranthaman has created flexible polymer carbon composite films as electrodes for supercapacitors. These devices are useful in applications for cars, buses and forklifts that require rapid charge and discharge cycles with high power and high energy density. Supercapacitors with this technology in electrodes saw just a 2 percent drop after 10,000 charge/discharge cycles.
The technology, described in a paper published in ChemSusChemby Wiley-VCH, follows an ORNL discovery of a method to use scrap tires for batteries. Together, these approaches could provide some relief to the problems associated with the 1.5 billion tires manufacturers expect to produce annually by 2035.
“Those tires will eventually need to be discarded, and our supercapacitor applications can consume several tons of this waste,” Paranthaman said. “Combined with the technology we’ve licensed to two companies to convert scrap tires into carbon powders for batteries, we estimate consuming about 50 tons per day.”
While that amount represents just a fraction of the 8,000 tons that need to be recycled every day, co-author Yury Gogotsi of Drexel noted that other recycling companies could contribute to that goal.
“Each tire can produce carbon with a yield of about 50 percent with the ORNL process,” Gogotsi said. “If we were to recycle all of the scrap tires, that would translate into 1.5 million tons of carbon, which is half of the annual global production of graphite.”
To produce the carbon composite papers, the researchers soaked crumbs of irregularly shaped tire rubber in concentrated sulfuric acid. They then washed the rubber and put it into a tubular furnace under a flowing nitrogen gas atmosphere. They gradually increased the temperature from 400 degrees Celsius to 1,100 degrees.
After several additional steps, including mixing the material with potassium hydroxide and additional baking and washing with deionized water and oven drying, researchers have a material they could mix with polyaniline, an electrically conductive polymer, until they have a finished product.
“We anticipate that the same strategy can be applied to deposit other pseudocapacitive materials with low-cost tire-derived activated carbon to achieve even higher electrochemical performance and longer cycle life, a key challenge for electrochemically active polymers,” Gogotsi said.
The Latest on: Tire recycling
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The Latest on: Tire recycling
- Businesses hoping to change recycling in Nelson Countyon November 27, 2019 at 7:00 am
Carter said the county does best at recycling aluminum cans, and to some extent metals and cardboard. Mixed paper and plastics go to Sonoco Recycling in Madison Heights. Metals, aluminum, and tires go ...
- Liberty Tire Recycling to Match First $5,000 Donated to The Ray on Georgia Gives Dayon November 27, 2019 at 6:45 am
Liberty Tire Recycling announced today that they will be matching the first $5,000 donated to The Ray on Georgia Gives Day, December 3, 2019.
- Recycle Right: How to properly recycle plastic bags this holiday seasonon November 26, 2019 at 8:24 pm
If you live in Brown, Outagamie or Winnebago counties, whatever you put in your curbside recyclable bin goes to the Tri-County Recycling Facility in Outagamie County. About 400 tons of material is ...
- The Do’s and Don'ts of Holiday Recyclingon November 25, 2019 at 8:01 am
Bulky waste can accept up to 4 tires, white goods, 4 televisions, 10 gallons of latex paint, furniture and many other items. Bulky waste charges $10 for 8 cubic yards of waste. This information may be ...
- News Briefs for Sunday Nov 24on November 23, 2019 at 3:19 pm
There will be no curbside garbage, recycling, brush, yard waste, tire, or bulk collection on Thanksgiving Day. Garbage, recycling, brush, yard waste, tire, and bulk collection will be delayed one day ...
- Frenchtown recycling dilemma could spill over into county serviceson November 23, 2019 at 5:17 am
The commissioners approved a request from Westover to accept a $20,000 grant from the Michigan Department of Environmental, Great Lakes and Energy to continue funding the county’s scrap tire recycling ...
- New recycling, transfer facility coming to Sandson November 22, 2019 at 6:51 pm
“There will be six different roll offs,” Yelle said. “They’ll be one for glass, two for single-stream recycling, two for solid waste they bring in right now and one for tires. They’ll be another area ...
- Bridgestone cuts carbon emissions by using recovered carbon black for new tireson November 22, 2019 at 8:00 am
using it as reinforcing filler in tires for both agricultural and passenger applications. According to Bridgestone, this recycling method reduced the amount of CO2 produced in the manufacture of those ...
- Event proves Nashoba Valley takes recycling seriouslyon November 21, 2019 at 11:03 pm
Sponsored by the Ayer Recycling Committee, the 11th annual event took place on Saturday ... Those products include electronics like laptops and air-conditioners, household upholstery like mattresses ...
- Be festive, but remember to recycleon November 21, 2019 at 6:17 pm
it’s a good idea to donate unwanted items to organizations that can recycle them,” Jones wrote. Keep Suffolk Beautiful is planning to hold its next recycling drive, which will also include tire ...
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