Sealing assembly of battery, method of fabricating the same, and lithium battery

1. A sealing assembly of a battery, comprising:

a ceramic ring having a receiving hole;

a metal ring fitted over the ceramic ring for sealing an open end of the battery; and

a core column comprising a metal-ceramic composite, wherein the whole core column is received in the receiving hole.

2. The sealing assembly according to claim 1 , wherein the metal-ceramic composite comprises:

a ceramic porous body; and

a metal material filled in pores of the ceramic porous body,

wherein the metal-ceramic composite and the ceramic ring form a ceramic composite structure.

3. The sealing assembly according to claim 2 , wherein the metal material of the metal-ceramic composite comprises a magnesium aluminum alloy.

4. The sealing assembly according to claim 2 , wherein the metal material of the metal-ceramic composite comprises a mixture of copper and an oxide of copper.

5. The sealing assembly according to claim 1 , wherein the core column further comprises at least one metal part disposed at an upper end and/or a lower end of the core column.

6. The sealing assembly according to claim 5 , wherein the at least one metal part comprises a magnesium aluminum alloy.

7. The sealing assembly according to claim 5 , wherein the at least one metal part comprises a mixture of copper and an oxide of copper.

8. The sealing assembly according to claim 1 , wherein the ceramic ring is chosen from an alumina ceramic ring, a zirconia ceramic ring, an aluminum nitride ceramic ring, a boron nitride ceramic ring, a silicon nitride ceramic ring, and a ceramic ring of alumina and zirconia, and

wherein the metal ring is chosen from an aluminum ring and an aluminum alloy ring, and comprises a mounting hole.