A battery module according to the present invention includes rechargeable batteries that include a first terminal and a second terminal which protrude outward, the first terminal including differentiation portions formed of an indentation or a protruding portion to differentiate the first terminal f
A battery module according to the present invention includes rechargeable batteries that include a first terminal and a second terminal which protrude outward, the first terminal including differentiation portions formed of an indentation or a protruding portion to differentiate the first terminal from the second terminal; and connection members that electrically connect the rechargeable batteries, fixed to the first and second terminals of adjacent rechargeable batteries, including verification portions which fit the differentiation portions so as to improve assemblability and minimize contact resistance.
대표청구항▼
1. A battery module, comprising: a plurality of rechargeable batteries, each comprising a first terminal and a second terminal at a same side of the rechargeable batteries, the first terminal including at least one differentiation portion comprising at least one of an indentation or a protruding por
1. A battery module, comprising: a plurality of rechargeable batteries, each comprising a first terminal and a second terminal at a same side of the rechargeable batteries, the first terminal including at least one differentiation portion comprising at least one of an indentation or a protruding portion, to differentiate the first terminal from the second terminal; andconnection members electrically connecting the plurality of rechargeable batteries, each of the connection members being fixed to the first terminal of a first one of the plurality of rechargeable batteries and the second terminal of a second one of the plurality of rechargeable batteries adjacent to the first one, the connection members comprising verification portions which fit the differentiation portions, the connection members being configured to be combined with the first terminal of the first one of the plurality of the rechargeable batteries and the second terminal of the second one of the plurality of the rechargeable batteries adjacent to the first one in a direction perpendicular to a top surface of the first terminal of the first one of the plurality of the rechargeable batteries and the second terminal of the second one of the plurality of the rechargeable batteries adjacent to the first one,wherein the first terminal of the first one of the plurality of the rechargeable batteries, the second terminal of the second one of the plurality of the rechargeable batteries adjacent to the first one, and the connection member are configured to space the first one of the plurality of the rechargeable batteries and the second terminal of the second one of the plurality of batteries adjacent to the first one at a set distance,wherein each of the first and second terminals comprises a plate,wherein the at least one of the indentation portions is formed on the plate, or at least one of the protruding portions extends from the plate, andwherein each of the rechargeable batteries comprises: an electrode assembly;a case containing the electrode assembly;a cap plate coupled to an opening of the case; anda rivet fixing the first terminal or the second terminal to the cap plate. 2. The battery module of claim 1, wherein: each of the rechargeable batteries further comprises:the electrode assembly comprising a positive electrode, a negative electrode, and a separator between the positive electrode and the negative electrode. 3. The battery module of claim 1, wherein: each of the rechargeable batteries further comprises a lead member electrically connecting the first terminal or the second terminal to the electrode assembly, andthe rivet fixes the lead member to the cap plate together with the first terminal or the second terminal. 4. The battery module of claim 1, wherein: the first terminal includes the differentiation portion and no indentations or protruding portions are at the second terminal. 5. The battery module of claim 1, wherein: each of the connection members has at least one contact protrusion at a surface facing the first terminal or the second terminal, and the connection member is joined to the first terminal or the second terminal at the contact protrusion by welding. 6. The battery module of claim 1, wherein: the first terminal has a differentiation portion comprising a first indentation, the second terminal has a second indentation, and the first indentation has a position or a shape at the first terminal different from a position or a shape of the second indentation at the second terminal. 7. The battery module of claim 1, wherein: the first terminal has a differentiation portion comprising a first protruding portion, the second terminal has a second protruding portion, and the first protruding portion has a position or a shape at the first terminal different from a position or a shape of the second protruding portion at the second terminal. 8. The battery module of claim 1, wherein: the first terminal has a differentiation portion comprising a protruding portion, the second terminal has an indentation, and the verification portions fit the protruding portion and the indentation. 9. The battery module of claim 1, wherein: the first terminal has differentiation portions comprising first protruding portions, the second terminal has second protruding portions, and a distance between the first protruding portions is different from a distance between the second protruding portions. 10. The battery module of claim 1, wherein: each of the connection members has indication portions that indicate positions or shapes of the verification portions at a surface opposite to a surface where the verification portions are located. 11. The battery module of claim 10, wherein: the indication portions are selected from the group consisting of a protrusion, a groove, a pattern, a symbol, and a character. 12. The battery module of claim 10, wherein: the indication portions have a same shape as the differentiation portions. 13. The battery module of claim 1, wherein: one of the connection members is fixed by welding to the first terminal of the first one of the plurality of the rechargeable batteries and the second terminal of the second one of the plurality of the rechargeable batteries adjacent to the first one,the at least one differentiation portion comprises a first protruding portion at a top of the first terminal, a second protruding portion at a top of the second terminal, and the second protruding portion has a shape different from the first protruding portion,the verification portion comprises connection grooves in which the first protruding portion and the second protruding portion fit, andthe first protruding portion and the verification portion and the second protruding portion and the verification portion are joined to each other by welding. 14. The battery module of claim 1, wherein: each of the first and second terminals has a substantially rectangular plate shape. 15. The battery module of claim 1, wherein: the at least one differentiation portion is at a periphery of the first terminal.
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이 특허에 인용된 특허 (6)
Hooke John W. (Gainesville FL), Battery linkage system.
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