Newsletters
News & Information for Technology Purchasers NewsFactor Sites:       NewsFactor.com     Enterprise Security Today     CRM Daily     Business Report     Sci-Tech Today  
   
This ad will display for the next 20 seconds. Click for more information, or
Home Enterprise I.T. Cloud Computing Applications Hardware More Topics...
GET RECOGNIZED.
Let an ISACA® certification
elevate your career.

Register today and save
Hardware
DDoS Protection Powered By Verisign
Average Rating:
Rate this article:  
Longer Phone Battery Lifespan Seen with Self-Healing Tech

Longer Phone Battery Lifespan Seen with Self-Healing Tech
By Barry Levine

Share
Share on Facebook Share on Twitter Share on Linkedin Share on Google Plus

The polymer-covered, self-healing silicon battery electrodes can currently work for about 100 charge/discharge cycles, but the goal is 500 cycles for cell phones and 3,000 for electric vehicles. A cycle is when a battery delivers 100 percent of its charge and then recharges fully. The tech is being developed by Stanford and the Department of Energy.
 


Self-healing technology has taken another step forward with the announcement that a research team has developed a self-healing battery. The breakthrough could mean significantly longer lifespans for batteries in mobile devices or electric cars.

The research team, from Stanford University and the Department of Energy's SLAC National Accelerator Lab, described in a paper published this week in Nature Chemistry magazine that they used a silicon electrode in a lithium ion battery, instead of the normal carbon electrode in that role. Silicon can store 10 times more lithium than carbon, and thus create a longer battery life, but silicon usually swells up and shrinks during every charge cycle. This expansion and contraction causes the silicon electrode to crack and disintegrate.

The team used a synthetic polymer whose hydrogen-bond formation can heal the cracks in the silicon, allowing the silicon to last 10 times longer than without the polymer. Carbon nanoparticles were also added so the polymer would be able to conduct electricity.

Weakened Chemical Bonds

The scientists weakened some chemical bonds in the polymer so that it could be used to heal the silicon. The weakened polymer breaks more easily than before, but the chemical bonds can also link up again more easily, a process that resembles how DNA can rearrange and recombine.

Stanford associate professor Yi Cui told news media that this approach could "make silicon workable for the battery electrode," by repairing any cracks within a few hours.

Cui and his team developed this approach after learning that another Stanford research team was working on the creation of an interactive sensor network, or "skin," of flexible plastic. This led Cui's team to ask: "Why can't we combine a self-healing polymer together with a battery?" In fact, the self-healing battery was developed in the same lab as the flexible, sensor-laden "skin," which could eventually be used for robots or prosthetic limbs.

The polymer-covered battery electrodes can currently work for about 100 charge/discharge cycles, but the goal is 500 cycles for cell phones and 3,000 for electric vehicles. A cycle is when a battery delivers 100 percent of its charge and then recharges fully.

Other Self-Healers

The self-repairing battery is the latest of several announced breakthroughs in self-healing electronic technology. In March, for instance, researchers from the California Institute of Technology developed, for the first time, a method for chips to route circuits around damaged components in order to "heal" themselves.

These healing chips contained a number of on-chip sensors that monitor temperature, current, voltage and power, feeding updates to a custom-made application-specific integrated circuit (ASIC) on the same chip. When there are changes in the expected measurements that indicate damage, the ASIC finds the best alternative routing through actuators on the chip, out of more than 250,000 possible configurations.

At the end of 2011, a research team at the University of Illinois utilized microcapsules that reside above a gold circuit line. When a crack developed in the circuit, the microcapsules released liquid metal to repair the break -- within a hundred microseconds.
 

Tell Us What You Think
Comment:

Name:

CB:

Posted: 2013-11-19 @ 4:10pm PT
interesting



Salesforce.com is the market and technology leader in Software-as-a-Service. Its award-winning CRM solution helps 82,400 customers worldwide manage and share business information over the Internet. Experience CRM success. Click here for a FREE 30-day trial.


 Hardware
1.   New Lenovo PCs for Business Users
2.   Price Wars Hitting Laptop Market?
3.   Have Net Routers Reached The Limit?
4.   Obama Boosts Government Tech
5.   Surface Pro Ads Aim at MacBook Pro


advertisement
Acer Chromebook Packed with Power
13-inch screen on under-$300 devices.
Average Rating:
Can Surface Pro Tablet Replace a PC?
Microsoft says yes with 12-inch Pro 3.
Average Rating:
AMD Debuts 64-Bit ARM Server Chips
New Opterons target data center needs.
Average Rating:
Product Information and Resources for Technology You Can Use To Boost Your Business

Network Security Spotlight
Cost of Target Data Breach: $148 Million Plus Loss of Trust
The now infamous Target data breach is still costing the company -- and its shareholders -- plenty. In fact, the retailing giant forecast the December 2013 incident cost shareholders $148 million.
 
Aruba Networks Handles Black Hat with Aplomb
It's not an easy job. Aruba Networks' task throughout the Black Hat USA conference in Las Vegas this month was to ensure thousands of attendees could connect without malicious attacks.
 
Chinese Hackers Nab Info on Millions of U.S. Patients
A group of Chinese hackers has stolen the personal information, including names and Social Security numbers, of about 4.5 million patients at hospitals operated by Community Health Systems.
 

Enterprise Hardware Spotlight
Three New Lenovo PCs Aimed at Business Users
Businesses everywhere want computing solutions that do more for less money, and Lenovo has unveiled three new desktop PCs that offer solid computing at a budget-minded price.
 
Aruba Networks Handles Black Hat with Aplomb
It's not an easy job. Aruba Networks' task throughout the Black Hat USA conference in Las Vegas this month was to ensure thousands of attendees could connect without malicious attacks.
 
Compression, Deduplication Come to Violin Concerto 2200
Violin Memory has announced that data deduplication and compression capabilities are now available on its Concerto 2200 solution. Typically, users will experience deduplication rates between 6:1 and 10:1.
 

Mobile Technology Spotlight
Apple Stock Soars Ahead of iPhone 6 Launch
The imminent release of the iPhone 6 -- and maybe even an iWatch -- has sent Apple's stock soaring to new heights. Considering what else the firm could have up its sleeve -- the stratosphere may be the limit.
 
HTC Debuts Windows Phone Version of One M8 Smartphone
HTC is bringing the Windows Phone mobile OS to its flagship One M8 device -- the first time any mainstream flagship smartphone has been offered with a choice of operating systems.
 
Verizon Earns Top Rating in Mobile Network Comparison
A new report says Verizon Wireless was the top-performing U.S. cellphone service provider in the first half of 2014, on a nationwide and state-by-state basis, as well as in metro areas.
 

Navigation
NewsFactor Network
Home/Top News | Enterprise I.T. | Cloud Computing | Applications | Hardware | Mobile Tech | Big Data | Communications
World Wide Web | Network Security | Data Storage | CRM Systems | Microsoft/Windows | Apple/Mac | Linux/Open Source | Personal Tech
Press Releases
NewsFactor Network Enterprise I.T. Sites
NewsFactor Technology News | Enterprise Security Today | CRM Daily

NewsFactor Business and Innovation Sites
Sci-Tech Today | NewsFactor Business Report

NewsFactor Services
FreeNewsFeed | Free Newsletters

About NewsFactor Network | How To Contact Us | Article Reprints | Careers @ NewsFactor | Services for PR Pros | Top Tech Wire | How To Advertise

Privacy Policy | Terms of Service
© Copyright 2000-2014 NewsFactor Network. All rights reserved. Article rating technology by Blogowogo. Member of Accuserve Ad Network.