Navigation Links
Silicon sponge improves lithium-ion battery performance
Date:7/10/2014

RICHLAND, Wash. The lithium-ion batteries that power our laptops and electric vehicles could store more energy and run longer on a single charge with the help of a sponge-like silicon material.

Researchers developed the porous material to replace the graphite traditionally used in one of the battery's electrodes, as silicon has more than 10 times the energy storage capacity of graphite. A paper describing the material's performance as a lithium-ion battery electrode was published today in Nature Communications.

"Silicon has long been sought as a way to improve the performance of lithium-ion batteries, but silicon swells so much when it is charged that it can break apart, making a silicon electrode inoperable," said Pacific Northwest National Laboratory Fellow Ji-Guang "Jason" Zhang. "The porous, sponge-like material we've developed gives silicon the room it needs to expand without breaking."

Room for improvement

Rechargeable lithium-ion batteries have two electrodes: one that's positively charged and made of lithium and another that's negative and typically consists of graphite. Electricity is generated when electrons flow through a wire that connects the two. To control the electrons, positively charged lithium atoms which scientists call ions - shuffle from one electrode to the other through another path: the electrolyte solution in which the electrodes sit.

The chemistry of lithium-ion batteries limits how much energy they can store. To increase the battery's energy capacity, researchers are looking at new materials such as silicon. A lithium-ion battery with a silicon electrode could last about 30 percent longer than one with a graphite electrode. Today's average electric vehicle could drive about 130 miles on a single charge if it used a lithium-ion battery with PNNL's silicon electrode.

Unfortunately, silicon expands as much as three times in size when it charges, creating pressure within
'/>"/>

Contact: Franny White
franny.white@pnnl.gov
509-375-6904
DOE/Pacific Northwest National Laboratory
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Applied Silicone Launches Ultra-Soft LSR
2. In-depth Research on China Organic Silicon Industry, 2013-2017 (Update Version)
3. Amedica Signs Agreement with Kyocera for Commercial Manufacture of Silicon Nitride Medical Devices
4. Stanford scientists create a low-cost, long-lasting water splitter made of silicon and nickel
5. New device stores electricity on silicon chips
6. NIST/JQI team gets the edge on photon transport in silicon
7. Brainwave Signal Interpretation Software Company EyeMynd Announces Move to Silicon Valley
8. MarketPublishers.com Added New Report on Silicon Nitride (CAS 12033-89-5) Market to Its Catalogue
9. NASA Scientists and Silicon Valley Space Center Partners Make Home Team Bid for Moffett Federal Airfield Development
10. MarketPublishers.com Added New Report on Silicon Tetrafluoride (CAS 7783-61-1) Market to Its Catalogue
11. Next Silicon Valley BioTalks Tackles “Is EDC Becoming a Commodity?” at Onyx Pharmaceuticals HQ
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... Medical Systems (NYSE: VAR ), world leader in ... to sustainability with inclusion on a prestigious list of the ... equipment company among the Corporate Knights Global 100 Most Sustainable ... Davos, Switzerland . "We ...
(Date:12/25/2014)... (PRWEB) December 25, 2014 The report ... by Product Type & Provider Type - Global Advancements, ... market with an in-depth analysis and forecasting of revenues. ... spread through 221 pages and in-depth TOC on “Service ...
(Date:12/24/2014)...  Vermillion, Inc. (Nasdaq:   VRML), a bio-analytical solutions ... the Company closed its previously announced private placement ... W. Schuler , Birchview Fund LLC and several ... offering expenses.  The proceeds will be used for ...
(Date:12/24/2014)... December 23, 2014 GMO corn cases filed ... are in the process of being consolidated in a Kansas ... Re: Syngenta AG MIR 162 Corn Litigation, MDL No. 2591 ... , Management of the Syngenta GMO corn multidistrict litigation (MDL) ...
Breaking Biology Technology:Varian Honored Among World's 100 Most Sustainable Corporations 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 3Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 4Vermillion Announces Closing of Equity Financing 2Vermillion Announces Closing of Equity Financing 3Carey Danis & Lowe Reports on Syngenta GMO Corn Transfer Order 2
... 17 Digital Union announced today they,have entered ... (Southeast,Regional Genetics Group) in Region 3 to provide ... states, Puerto Rico and the,US Virgin Islands. The ... has received additional funding for another five-year period.,With ...
... Technologies and ... Decade, ST. LOUIS, Aug. 17 Monsanto Company ... Biosafety,Technical Committee (CTNBio) approved the company,s MON 810 insect,protection ... Borer,for future commercial use in corn in Brazil. ...
... The Foundation,for Taxpayer and Consumer Rights (FTCR) today praised ... Interstate Alliance for Stem Cell,Research to the public saying ... science. The decision came after a closed,session of the ... Warren Wollschlager, of the Connecticut Department of Health and ...
Cached Biology Technology:Digital Union's RT1(TM) Software Creates Telegenetics Network for Region 3 Genetics Collaborative 2Brazilian National Biosafety Technical Committee Approves Monsanto Company Insect-Protected Corn Trait 2Consumer Advocates Praise Interstate Stem Cell Open Meeting Decision 2
(Date:1/22/2015)... 9, 2015 Valid S.A. ("Company") (BM&FBOVESPA: VLID3 ON), is ... the State of Washington,s Department of ... enrollment and central issuance system for driver,s licenses and identification ... project planning and development will start in January 2015, with ...
(Date:1/22/2015)... MELBOURNE, Fla. , Jan. 13, 2015  Today, ... wearable technology, launched its crowdfunding campaign on Fundable, ... accelerate the build of production capacity to meet ... Photo - http://photos.prnewswire.com/prnh/20150113/168790 ...
(Date:1/22/2015)... Jan. 15, 2015  BellBrook Labs, a leader in ... the launch of a TR-FRET (time resolved Forster ... UDP Assay, a high throughput screening assay for ... will allow for sensitive detection of hundreds of ...
Breaking Biology News(10 mins):Valid USA Signs Contract For Washington Driver's License Issuance 2FreeWavz Launches on Fundable to Drive Speed-to-Market in 2015 2BellBrook Labs Launches a High Throughput Screening Assay for Glycosyltransferases with TR-FRET Readout 2
... German . Waiting: a clever move! , ... prominent ,Stanford Marshmallow Experiment,: the children were presented with a marshmallow ... and receive a second one if the first one was still ... were able to wait for the delayed reward showed greater success ...
... Conn. , March 13, 2013 /PRNewswire-iReach/ -- ... and biologics will need to address the current ... innovative ideas for developing antibodies against intracellular and ... for infectious disease and CNS applications. The versatility ...
... household pesticide contamination emphasizes the need for less ... blocking cracks where insects can enter and other ... concluded. Their study appears in the ACS, journal ... Lu and colleagues cite previous studies showing that ...
Cached Biology News:Doing business with a parrot 2Engineering Stream Conferences at PEGS 2013 2Engineering Stream Conferences at PEGS 2013 3
Presenilin 2 Immunogen: Synthetic peptide corresponding to residues 31-47 of human Presenilin 2. Storage: -20 C, Avoid Freeze/Thaw Cycles...
SHP-2 Antibody...
200 μg per ml DNA in 10 SSPE, 2 Denhardt's...
... an early protein. Can ... post-infection exhibiting an intranuclear inclusion ... between 6-24 hours. These ... granular staining. No other ...
Biology Products: