Effect of syngas composition on combustion and exhaust emission characteristics in a dual-fuel engine operated in PREMIER combustion mode
Ford drops price of SYNC by $100, expands availability

Researchers improve the performance of sodium-ion batteries by using tailored carbon anodes with hierarchical porosity

Researchers at Justus Liebig University, Giessen, Germany, have improved the performance of sodium-ion batteries (earlier post) by using tailor-made carbon materials with hierarchical porosity for the anode instead of common carbon-based anode materials. In a paper published in the RSC journal Energy & Environmental Science, they describe achieving capacities exceeding 100 mA h g−1 at C/5 while exhibiting excellent rate capability and reasonable cycle life.

Wenzel
Performance of the new anodes. Wenzel et al. Click to enlarge.

A battery that uses sodium ions instead of lithium ions could potentially be much less expensive and safer, and it would be more environmentally benign. However, Na-ion batteries have exhibited weak charge-discharge behavior except at high temperature—indicative of sluggish kinetics in standard carbon anodes.

Wenzel et al. prepared a carbon material with interconnected pores in two size ranges. Comparison testing with anodes made from a series of commercial porous and reference carbons showed improved charge-storage capacity and recyclability and a 15-fold increase in room-temperature charge-discharge rates with the new material.

Resources

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

Your Information

(Name is required. Email address will not be displayed with the comment.)