Asset Details
Do you wish to reserve the book?
High dielectric barium titanate porous scaffold for efficient Li metal cycling in anode-free cells
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
High dielectric barium titanate porous scaffold for efficient Li metal cycling in anode-free cells
Do you wish to request the book?
High dielectric barium titanate porous scaffold for efficient Li metal cycling in anode-free cells
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
High dielectric barium titanate porous scaffold for efficient Li metal cycling in anode-free cells
2021
Overview
Li metal batteries are being intensively investigated as a means to achieve higher energy density when compared with standard Li-ion batteries. However, the formation of dendritic and mossy Li metal microstructures at the negative electrode during stripping/plating cycles causes electrolyte decomposition and the formation of electronically disconnected Li metal particles. Here we investigate the use of a Cu current collector coated with a high dielectric BaTiO
3
porous scaffold to suppress the electrical field gradients that cause morphological inhomogeneities during Li metal stripping/plating. Applying operando solid-state nuclear magnetic resonance measurements, we demonstrate that the high dielectric BaTiO
3
porous scaffold promotes dense Li deposition, improves the average plating/stripping efficiency and extends the cycling life of the cell compared to both bare Cu and to a low dielectric scaffold material (i.e., Al
2
O
3
). We report electrochemical tests in full anode-free coin cells using a LiNi
0.8
Co
0.1
Mn
0.1
O
2
-based positive electrode and a LiPF
6
-based electrolyte to demonstrate the cycling efficiency of the BaTiO
3
-coated Cu electrode.
The development of anode-free batteries requires current collectors able to deposit and remove Li metal upon cycling efficiently. Here, the authors report the use of high dielectric porous BaTiO
3
to avoid the formation of inhomogeneous Li metal depositions during anode-free cell cycling.
