BATTERY PACK AND BATTERY MODULE AND METHOD FOR OPERATING A BATTERY MODULE
First Claim
1. A battery pack, comprising at least two electrochemical cells each including a positive pole and a negative pole on an end face of a cell body, said poles of said cells being electrically connected with one another in a manner selected from the group consisting of in series, in parallel and both;
- a cell connector for electrically connecting said cells and provided on at least two cells, on an end face on a same side relative to their position in the battery pack, said cell connector connecting one pole of the connected cells and extending to a contact region of a circuit board, the cell bodies of said cells being positioned parallel to each other, and the end faces of said cell bodies being located in a same plane.
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Accused Products
Abstract
A battery pack with at least two electrochemical cells, lithium ion cells in particular, has each cell including a positive pole and a negative pole on the end face of the particular cell body, the poles of the cells being electrically connected in series and/or in parallel. A cell connector for electrically connecting the cells is provided on at least two cells, on the end face on the same side relative to their position in the battery pack, the cell connector connecting one pole of the connected cells and extending to a contact region of a circuit board; the cell bodies of the cells are positioned parallel to each other, and the end faces of the cell bodies are located in the same plane.
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Citations
16 Claims
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1. A battery pack, comprising at least two electrochemical cells each including a positive pole and a negative pole on an end face of a cell body, said poles of said cells being electrically connected with one another in a manner selected from the group consisting of in series, in parallel and both;
- a cell connector for electrically connecting said cells and provided on at least two cells, on an end face on a same side relative to their position in the battery pack, said cell connector connecting one pole of the connected cells and extending to a contact region of a circuit board, the cell bodies of said cells being positioned parallel to each other, and the end faces of said cell bodies being located in a same plane.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 16)
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13. A battery module, comprising a plurality of battery packs, each of said battery packs including at least two electrochemical cells each including a positive pole and a negative pole on an end face of a cell body, said poles of said cells being electrically connected with one another in a manner selected from the group consisting of in series, in parallel and both;
- a cell connector for electrically connecting said cells and provided on at least two cells, on an end face on a same side relative to their position in the battery pack, said cell connector connecting one pole of the connected cells and extending to a contact region of a circuit board, the cell bodies of said cells being positioned parallel to each other, and the end faces of said cell bodies being located in a same plane, wherein said battery packs are electrically connected in a manner selected from the group consisting of in series, in parallel, and both.
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14. A method for operating a battery module including a plurality of battery packs each including at least two electrochemical cells each including a positive pole and a negative pole on an end face of a cell body, said poles of said cells being electrically connected with one another in a manner selected from the group consisting of in series, in parallel and both;
- a cell connector for electrically connecting said cells and provided on at least two cells, on an end face on a same side relative to their position in the battery pack, said cell connector connecting one pole of the connected cells and extending to a contact region of a circuit board, the cell bodies of said cells being positioned parallel to each other, and the end faces of said cell bodies being located in a same plane, comprising the steps of observing a drift in a starting voltage of each of said battery packs;
comparing the drifts of the battery packs with each other; and
when a specified limiting value of the drift is exceeding, outputting an alarm which prompts a user to replace the battery pack whose drift has exceeded the limiting value.
- a cell connector for electrically connecting said cells and provided on at least two cells, on an end face on a same side relative to their position in the battery pack, said cell connector connecting one pole of the connected cells and extending to a contact region of a circuit board, the cell bodies of said cells being positioned parallel to each other, and the end faces of said cell bodies being located in a same plane, comprising the steps of observing a drift in a starting voltage of each of said battery packs;
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15. A power tool, comprising at least one battery pack including at least two electrochemical cells each including a positive pole and a negative pole on an end face of a cell body, said poles of said cells being electrically connected with one another in a manner selected from the group consisting of in series, in parallel and both;
- a cell connector for electrically connecting said cells and provided on at least two cells, on an end face on a same side relative to their position in the battery pack, said cell connector connecting one pole of the connected cells and extending to a contact region of a circuit board, the cell bodies of said cells being positioned parallel to each other, and the end faces of said cell bodies being located in a same plane, wherein the battery pack is fixedly connected with the power tool.
Specification