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US 9,178,188 B2Granted
Rechargeable battery with collector plates having insulators and conductors
AssigneeSamsung SDI Co., Ltd.
InventorWan-Mook Lim
Life of this patent
Estimating the term…
Abstract
A rechargeable battery includes a plurality of electrode assemblies including positive and negative electrodes separated by a separator and a pair of electrode tabs protruding to both sides. A case receives the plurality of electrode assemblies. First and second current collecting plates cover openings formed on both sides of the case. First and second insulation plates are respectively disposed between the plurality of electrode assemblies and the first and second current collecting plates. The pair of electrode tabs at one side of the electrode assemblies pass through a first through hole formed in the first insulation plate and the pair of electrode tables at the other side of the electrode assemblies pass through a second through hole formed in the second insulation plate.
Claims25
A rechargeable battery comprising:
- a plurality of electrode assemblies including
- a positive electrode,
- a negative electrode, and
- a separator provided between the positive electrode and the negative electrode, and
- a pair of electrode tabs protrude to both sides wherein the pair of electrode tabs comprises a positive electrode tab connected to the positive electrode and a negative electrode tab connected to the negative electrode;
- a case for receiving the plurality of electrode assemblies;
- a first current collecting plate which comprises a positive current collecting plate and a second current collecting plate which comprises a negative current collecting plate formed on both sides of the case, wherein the first current collecting plate and the second current collecting plate include a first insulator and a second insulator that are protruded inside the case, and a first conductor and a second conductor that are protruded inside the case;
- and
- a first insulation plate and a second insulation plate disposed between the plurality of electrode assemblies and the first current collecting plate and between the plurality of electrode assemblies and the second current collecting plate, wherein
- each of the pair of the electrode tabs passes through a first through hole and a second through hole formed in the first insulation plate and the second insulation plate, and
- wherein electrode tabs of a pair of neighboring electrode assemblies from among the plurality of electrode assemblies are bent in opposite directions to form an overlapped area where they are overlapped and connected, the overlapped area contacting the first insulator of the first current collecting plate or the second insulator of the second current collecting plate, and
- wherein at least one of the positive electrode tabs contacts the first conductor, and at least one of the negative electrode tabs contacts the second conductor.
9 more elements
A method of fabricating a rechargeable battery, the method comprising:
- providing a plurality of electrode assemblies, comprising a positive electrode, a negative electrode, a separator positioned between the positive and negative electrodes, and a pair of electrode tabs that protrude from both sides of respective electrode assemblies of the plurality of electrode assemblies, the pair of electrode tabs including positive tab connected to the positive electrode and a negative tab connected to the negative electrode;
- positioning the plurality of electrode assemblies within a case configured to receive the plurality of electrode assemblies, wherein the case includes a first opening at a first end and a second opening at a second end;
- covering the first opening of the case with a first current collecting plate which comprises a positive current collecting plate wherein the first collecting plate is in electrical communication with the positive electrode and includes a first insulator and a first conductor;
- covering the second opening of the case with a second current collecting plate which comprises a negative current collecting plate wherein the second collecting plate is in electrical communication with the negative electrode and includes a second insulator and a second conductor, such that the first and second insulators protrude inside the case, the the first and second conductors protrude inside the case;
- positioning a first insulation plate comprising a plurality of first through holes between the plurality of electrode assemblies and the first current collecting plate;
- positioning a second insulation plate comprising a plurality of second through holes between the plurality of electrode assemblies and the second current collecting plate;
- inserting a first electrode tab of each of the pair of the electrode tabs through the first plurality of through holes formed in the first insulation plate and a second electrode tab of each of the pair of the electrode tabs passes through the second plurality of through holes formed in the second insulation plate;
- and
- bending each of the pair of electrode tabs so the plurality of electrode assemblies are fixed in the first insulation plate and the second insulation plate, wherein electrode tabs of a pair of neighboring electrode assemblies from among the plurality of electrode assemblies are bent in opposite directions to form an overlapped area where they are overlapped and connected to each other, and
- wherein the overlapped area contacts one of the first insulator of the first current collecting plate and the second insulator of the second current collecting plate, and at least one of the positive tabs contacts the first conductor, and at least one of the negative tabs contacts the second conductor.
7 more elements
Dependencies are inferred from the claim text.