Lithium battery cathode
A novel lithium battery cathode, a lithium ion battery using the same and processes and preparation thereof are disclosed. The battery cathode is formed by force spinning. Fiber spinning allows for the formation of core-shell materials using material chemistries that would be incompatible with prior spinning techniques. A fiber spinning apparatus for forming a coated fiber and a method of forming a coated fiber are also disclosed.
1. A lithium battery, comprising:
a cathode;
an anode;
an electrolyte between the anode and cathode; and
a separator disposed between the anode and cathode;
wherein the cathode comprises:
a plurality of fibers comprising a core surrounded by a ZrO 2 shell completely surrounding the core;
wherein the fibers are formed by fiber spinning.
2. The battery of claim 1 , wherein the core comprises a crystalline metal oxide material.
3. The battery of claim 1 , wherein the crystalline metal oxide is LiMn 2 O 4 or LiCoO 2 .
4. The battery of claim 1 , wherein the core is formed of oxide particles having a particle size between 10 to about 100 nm.