Carbon composite, electrode and lithium air battery comprising the carbon composite, and method of preparing the carbon composite
AssigneeSamsung Electronics Co., Ltd.
InventorsHyunpyo Lee, Dongjoon Lee, Mokwon Kim, Hyukjae Kwon, Hyunjin Kim, Heungchan Lee, Dongmin Im
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Abstract
A carbon composite includes: a carbonaceous core; and a polymer electrolyte membrane disposed on the carbonaceous core, the polymer electrolyte membrane including: a first ionic liquid, a first polymer layer disposed on the carbonaceous core and having a first ionic charge, and a second polymer layer disposed on the first polymer layer and having a second ionic charge opposite to the first charge of the first polymer layer.
Claims32
A carbon composite comprising:
- a carbonaceous core;
- and
- a polymer electrolyte membrane disposed on the carbonaceous core, the polymer electrolyte membrane comprising
- a first ionic liquid,
- a first polymer layer disposed on the carbonaceous core and having a first ionic charge, and
- a second polymer layer disposed on the first polymer layer and having a second ionic charge, which is opposite to the first ionic charge of the first polymer layer.
An electrode comprising:
- a porous layer comprising a plurality of carbon composites, a carbon composite of the plurality of carbon composites comprising
- a carbonaceous core;
- and
- a polymer electrolyte membrane disposed on the carbonaceous core, the polymer electrolyte membrane comprising
- a first ionic liquid,
- a first polymer layer disposed on the carbonaceous core and having a first ionic charge, and
- a second polymer layer disposed on the first polymer layer and having a second ionic charge, which is opposite to the first ionic charge of the first polymer layer.
A lithium-air battery comprising:
- a cathode;
- and
- a lithium-containing anode,
- wherein the cathode comprises
- a porous layer comprising a plurality of carbon composites, a carbon composite of the plurality of carbon composites comprising
- a carbonaceous core;
- and
- a polymer electrolyte membrane disposed on the carbonaceous core, the polymer electrolyte membrane comprising
- a first ionic liquid,
- a first polymer layer disposed on the carbonaceous core and having a first ionic charge, and
- a second polymer layer disposed on the first polymer layer and having a second ionic charge, which is opposite to the first ionic charge of the first polymer layer.
A method of preparing a carbon composite, the method comprising:
- coating a second ionic liquid on a carbonaceous core to prepare a coated carbonaceous core;
- disposing a first polymer layer on the coated carbonaceous core to provide a first polymer layer coated carbonaceous core, wherein the first polymer layer has a first ionic charge opposite to a third ionic charge of the second ionic liquid;
- disposing a second polymer layer on the first polymer layer to provide a second polymer layer coated carbonaceous core, wherein the second polymer layer has a second ionic charge opposite to the first ionic charge of the first polymer layer;
- and
- impregnating the first polymer layer and the second polymer layer with a first ionic liquid to prepare the carbon composite.
Dependencies are inferred from the claim text.