Impact Factor:

18.9

DOI number:

10.1038/s41467-020-14859-z

Journal:

Nature communications

Abstract:

Limited by the size of microelectronics, as well as the space of electrical vehicles, there are tremendous demands for lithium-ion batteries with high volumetric energy densities. Current lithium-ion batteries, however, adopt graphite-based anodes with low tap density and gravimetric capacity, resulting in poor volumetric performance metric. Here, by encapsulating nanoparticles of metallic tin in mechanically robust graphene tubes, we show tin anodes with high volumetric and gravimetric capacities, high rate performance, and long cycling life. Pairing with a commercial cathode material LiNi0.6Mn0.2Co0.2O2, full cells exhibit a gravimetric and volumetric energy density of 590 W h Kg−1 and 1,252 W h L−1, respectively, the latter of which doubles that of the cell based on graphite anodes. This work provides an effective route towards lithium-ion batteries with high energy density for a broad range of applications.

Co-author:

Xinyi Tan,Fan Li,Ran Tao,Jinhui Xu,Dejia Kong,Zhiyong Wang,Bin Xu,Xiang Wang,Chongmin Wang,Jinlai Li

First Author:

Runwei Mo

Indexed by:

Journal paper

Correspondence Author:

Yiting Peng,Yunfeng Lu

Discipline:

Engineering

Document Type:

J

Volume:

11

Issue:

1

Page Number:

1374

Translation or Not:

no

Date of Publication:

2020-03-13

Included Journals:

SCI

Links to published journals:

https://www.nature.com/articles/s41467-020-14859-z