Navigation Links
Silicon-coated nanonets could build a better lithium-ion battery
Date:2/16/2010

Chestnut Hill, Mass. (February 15, 2010) A tiny scaffold-like titanium structure of Nanonets coated with silicon particles could pave the way for faster, lighter and longer-lasting Lithium-ion batteries, according to a team of Boston College chemists who developed the new anode material using nanotechnology.

The web-like Nanonets developed in the lab of Assistant Professor of Chemistry Dunwei Wang offer a unique structural strength, more surface area and greater conductivity, which produced a charge/re-charge rate five to 10 times greater than typical Lithium-ion anode material, a common component in batteries for a range of consumer electronics, according to findings published in the current online edition of the American Chemical Society journal Nano Letters.

In addition, the Nanonets proved exceptionally durable, showing a negligible drop-off in capacity during charge and re-charge cycles. The researchers observed an average of 0.1% capacity fade per cycle between the 20th and the 100th cycles.

"As researchers pursue the next generation of re-chargeable Lithium-ion battery technology, a premium has been placed on increased power and a greater battery life span," said Wang. "In that context, the Nanonet device makes a giant leap toward those two goals and gives us a superior anode material."

Lithium-ion batteries are commonly used in consumer electronics devices. This type of rechargeable battery allows Lithium ions to move from the anode electrode to the cathode when in use. When charged, the ions move from cathode back to the anode.

The structure and conductivity of the Nanonets improved the ability to insert and extract Lithium ions from the particulate silicon coating, the team reported. Running at a charge/discharge rate of 8,400 milliamps per gram (mA/g) which is approximately five to 10 times greater than similar devices the specific capacity of the material was greater than 1,000 milliamps-hour per gram (mA-h/g). Typically, laptop Lithium-ion batteries are rated anywhere between 4,000 and 12,000 mA/h, meaning it would only take between four and 12 grams of the Nanonet anode material to achieve similar capacity.

Wang said the capability to preserve the crystalline titanium silicon core during the charge/discharge process was the key to achieving the high performance of the Nanonet anode material. Additional research in his lab will examine the performance of the Nanonet as a cathode material.


'/>"/>

Contact: Ed Hayward
ed.hayward@bc.edu
617-552-4826
Boston College
Source:Eurekalert  

Related biology technology :

1. Scientists grow nanonets able to snare added energy transfer
2. Marriage of microfluidics and optics could advance lab-on-a-chip devices
3. New fiber nanogenerators could lead to electric clothing
4. Simple test could offer cheap solution to detecting landmines
5. Ozone hole healing could cause further climate warming
6. Painless plasma jets could replace dentists drill
7. Minimally Invasive Repair of Ruptured Aortic Aneurysm Could Save More Lives than Surgery
8. Simple test could offer cheap solution to detecting landmines
9. Rock-breathing bacteria could generate electricity and clean up oil spills
10. New silicon-germanium nanowires could lead to smaller, more powerful electronic devices
11. New technology could boost disease detection tests speed and sensitivity
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Silicon-coated nanonets could build a better lithium-ion battery
(Date:6/27/2016)... , ... June 27, 2016 , ... Parallel 6 ... trials, announced today the Clinical Reach Virtual Patient Encounter CONSULT module which ... with the physician and clinical trial team. , Using the CONSULT module, patients and ...
(Date:6/27/2016)... --  Ginkgo Bioworks , a leading organism design ... awarded as one of the World Economic Forum,s ... innovative companies. Ginkgo Bioworks is engineering biology to ... in the nutrition, health and consumer goods sectors. ... including Fortune 500 companies to design microbes for ...
(Date:6/24/2016)... NC (PRWEB) , ... June 24, 2016 , ... Researchers ... the most commonly-identified miRNAs in people with peritoneal or pleural mesothelioma. Their findings are ... to read it now. , Diagnostic biomarkers are signposts in the blood, lung ...
(Date:6/23/2016)... 23, 2016 /PRNewswire/ - FACIT has announced the ... biotechnology company, Propellon Therapeutics Inc. ("Propellon" or ... of a portfolio of first-in-class WDR5 inhibitors for ... as WDR5 represent an exciting class of therapies, ... medicine for cancer patients. Substantial advances have been ...
Breaking Biology Technology:
(Date:6/16/2016)... , June 16, 2016 ... size is expected to reach USD 1.83 billion ... Grand View Research, Inc. Technological proliferation and increasing ... applications are expected to drive the market growth. ... , The development of advanced multimodal ...
(Date:6/3/2016)... 2016 Das DOTM ... Nepal hat ein 44 Millionen ... Kennzeichen, einschließlich Personalisierung, Registrierung und IT-Infrastruktur, an ... und Implementierung von Identitätsmanagementlösungen. Zahlreiche renommierte internationale ... teilgenommen, aber Decatur wurde als konformste und ...
(Date:5/24/2016)... 24, 2016 Ampronix facilitates superior patient care by providing unparalleled technology to ... display is the latest premium product recently added to the range of products distributed ... ... ... Imaging- LCD Medical Display- Ampronix News ...
Breaking Biology News(10 mins):