Green Car Congress  
Go to GCC Discussions forum About GCC Contact  RSS Subscribe Twitter headlines

« SwRI and USTA researchers to develop a novel catalyst for low-temperature SCR | Main | Ford tops 50 Best Global Green Brands list for 2014; Toyota, Honda and Nissan 2nd, 3rd and 4th »

Print this post

TiNb2O7 anode for high energy and power Li-ion hybrid electrochemical capacitor

24 June 2014

Researchers in Singapore report the first use of TiNb2O7 as an insertion-type anode in a lithium-ion hybrid electrochemical capacitor (Li-HEC) along with an activated carbon (AC) counter electrode derived from a coconut shell. The Li-HEC delivers very high energy and power densities of approximately 43 Wh  kg-1 and 3 kW  kg-1, respectively.

Furthermore, the AC/TiNb2O7 Li-HEC delivers a good cyclability of 3 000  cycles with about 84 % of the initial value. A paper on their work is published in the journal ChemSusChem.

A simple and scalable electrospinning technique is adopted to prepare one-dimensional TiNb2O7 nanofibers that can be characterized by XRD with Rietveld refinement, SEM, and TEM. The lithium insertion properties of such electrospun TiNb2O7 are evaluated in the half-cell configuration (Li/TiNb2O7) and it is found that the reversible intercalation of lithium (≈3.45 mol) is feasible with good capacity retention characteristics. The Li-HEC is constructed with an optimized mass loading based on the electrochemical performance of both the TiNb2O7 anode and AC counter electrode in nonaqueous media.

—Aravindan et al.

Resources

  • Aravindan, V., Sundaramurthy, J., Jain, A., Kumar, P. S., Ling, W. C., Ramakrishna, S., Srinivasan, M. P. and Madhavi, S. (2014) “Unveiling TiNb2O7 as an Insertion Anode for Lithium Ion Capacitors with High Energy and Power Density,” ChemSusChem doi: 10.1002/cssc.201400157

June 24, 2014 in Brief | Permalink | Comments (0) | TrackBack (0)

TrackBack

TrackBack URL for this entry:
http://www.typepad.com/services/trackback/6a00d8341c4fbe53ef01a73ddf6b1c970d

Listed below are links to weblogs that reference TiNb2O7 anode for high energy and power Li-ion hybrid electrochemical capacitor:

Comments

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Working...
Your comment could not be posted. Error type:
Your comment has been posted. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.

Working...

Post a comment

Green Car Congress © 2013 BioAge Group, LLC. All Rights Reserved. | Home | BioAge Group