English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The volume expansion during Li ion insertion/extraction remains an obstacle for the application of Sn-based anode in lithium ion-batteries. Herein, the nanoporous (np) Cu 6 Sn 5 alloy and Cu 6 Sn 5 /Sn composite were applied as a lithium-ion battery anode. The as-dealloyed np-Cu 6 Sn 5 has an ultrafine ligament size of 40 nm and a high BET-specific area of 15.9 m 2 g -1 . The anode shows an initial discharge capacity as high as 1200 mA h g -1 , and it remains a capacity of higher than 600 mA h g -1 for the initial five cycles at 0.1 A g -1 . After 100 cycles, the anode maintains a stable capacity higher than 200 mA h g -1 for at least 350 cycles, with outstanding Coulombic efficiency. The ex situ XRD patterns reveal the reverse phase transformation between Cu 6 Sn 5 and Li 2 CuSn. The Cu 6 Sn 5 /Sn composite presents a similar cycling performance with a slightly inferior rate performance compared to np-Cu 6 Sn 5 . The study demonstrates that dealloyed nanoporous Cu 6 Sn 5 alloy could be a promising candidate for lithium-ion batteries.

Dealloying-Derived Nanoporous Cu6Sn5 Alloy as Stable Anode Materials for Lithium-Ion Batteries