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US 7,745,046 B2Granted
Secondary battery
AssigneeSamsung SDI Co., Ltd.
InventorsYong-Sam Kim, Hyon-Sok Kim
Life of this patent
Estimating the term…
Abstract
A secondary battery includes: an electrode assembly including positive and negative electrodes; a container adapted to receive the electrode assembly; a cap assembly having at least two terminals exposed outside the container, the cap assembly being adapted to be fixed to the container to seal the container; and lead elements adapted to electrically connect the terminals and the electrode assembly. A center of the terminals are aligned with a center of the electrode assembly, and the lead elements are spaced apart from the center of their respective terminals and adapted to be connected to their respective terminals and the electrode assembly.
Claims18
A secondary battery, comprising:
- an electrode assembly including positive and negative elements wound together with a separator therebetween and respectively including positive and negative electrodes;
- a container having one open end and adapted to receive the electrode assembly;
- a cap assembly having a base plate and at least two terminals passing through the base plate and exposed outside of the container, the cap assembly being adapted to be fixed to the one open end of the container to seal the container;
- and
- lead elements adapted to electrically connect the at least two terminals to the electrode assembly;
- wherein a center of each of the at least two terminals is aligned with a center of the electrode assembly, and wherein the lead elements are spaced apart from the center of their respective terminals and are adapted to be connected between their respective terminals and the electrode assembly;
- wherein the positive and negative electrodes have respective separate positive and negative uncoated regions lacking active material, the positive and negative uncoated regions being arranged on respective opposite ends of the positive and negative electrodes, respectively, and compressed together;
- and
- wherein the at least two terminals and the lead elements are respectively connected to the compressed positive and negative uncoated regions.
6 more elements
A secondary battery, comprising:
- an electrode assembly including positive and negative elements wound together with a separator therebetween and respectively including positive and negative electrodes;
- a container having one open end and adapted to receive the electrode assembly;
- a cap assembly having a base plate and at least two terminals passing through the base plate and exposed outside of the container, the cap assembly being adapted to be fixed to the one open end of the container to seal the container;
- and
- lead elements adapted to electrically connect the at least two terminals to the electrode assembly;
- wherein a center of each of the at least two terminals is aligned with a center of the electrode assembly, and wherein the lead elements are spaced apart from the center of their respective terminals and are adapted to be connected between their respective terminals and the electrode assembly;
- wherein the positive and negative electrodes have respective separate positive and negative uncoated regions lacking active material, and wherein the positive uncoated region and the negative uncoated region are adapted to be arranged opposite to each other, and wherein the lead elements are adapted to respectively attach to an outermost portion of the positive uncoated region and an outermost portion of the negative uncoated region.
4 more elements
A secondary battery, comprising:
- an electrode assembly including positive and negative elements wound together with a separator therebetween and respectively including positive and negative electrodes;
- a container having one open end and adapted to receive the electrode assembly;
- a cap assembly having a base plate and at least two terminals passing through the base plate and exposed outside of the container, the cap assembly being adapted to be fixed to the one open end of the container to seal the container;
- and
- lead elements adapted to electrically connect the at least two terminals to the electrode assembly;
- wherein a center of each of the at least two terminals is aligned with a center of the electrode assembly, and wherein the lead elements are spaced apart from the center of their respective terminals and are adapted to be connected between their respective terminals and the electrode assembly;
- wherein the positive and negative electrodes have respective separate positive and negative uncoated regions lacking active material, and wherein each lead element is adapted to contact and attach to its respective uncoated region along the length direction of the uncoated region.
4 more elements
Dependencies are inferred from the claim text.