Battery module, battery system and electric vehicle
First Claim
Patent Images
1. A battery module comprising:
- a battery block composed of a plurality of battery cells; and
a voltage detecting circuit for detecting a voltage between terminals of each of said battery cells, whereina flexible printed circuit board, in which a voltage detecting line for electrically connecting a positive electrode terminal or a negative electrode terminal of each of said battery cells and said voltage detecting circuit is integrated with a substrate made of a flexible material, is attached to said battery block,said battery block includes said plurality of battery cells that are stacked, a first terminal row in which one of the positive electrode terminal and the negative electrode terminal of each of the battery cells is arranged in a direction in which said battery cells are stacked is constituted, and a second terminal row in which the other terminal of each of the battery cells is arranged in the direction in which said battery cells are stacked is constituted, andsaid flexible printed circuit board is composed of a first flexible printed circuit board having a plurality of voltage detecting lines each connecting the terminal constituting said first terminal row and said voltage detecting circuit, and a second flexible printed circuit board having a plurality of voltage detecting lines each connecting the terminal constituting said second terminal row and said voltage detecting circuit, whereinsaid first flexible printed circuit board is arranged along said first terminal row, and said second flexible printed circuit board is arranged along said second terminal row.
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Abstract
A battery block composed of a plurality of battery cells and a voltage detecting circuit (state detecting circuit) for detecting a voltage between terminals of each battery cell are included, and a flexible printed circuit board, in which a voltage detecting line for electrically connecting a positive electrode terminal or a negative electrode terminal of the battery cell and the voltage detecting circuit (state detecting circuit) is integrated with a substrate made or a flexible material, is provided.
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Citations
11 Claims
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1. A battery module comprising:
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a battery block composed of a plurality of battery cells; and a voltage detecting circuit for detecting a voltage between terminals of each of said battery cells, wherein a flexible printed circuit board, in which a voltage detecting line for electrically connecting a positive electrode terminal or a negative electrode terminal of each of said battery cells and said voltage detecting circuit is integrated with a substrate made of a flexible material, is attached to said battery block, said battery block includes said plurality of battery cells that are stacked, a first terminal row in which one of the positive electrode terminal and the negative electrode terminal of each of the battery cells is arranged in a direction in which said battery cells are stacked is constituted, and a second terminal row in which the other terminal of each of the battery cells is arranged in the direction in which said battery cells are stacked is constituted, and said flexible printed circuit board is composed of a first flexible printed circuit board having a plurality of voltage detecting lines each connecting the terminal constituting said first terminal row and said voltage detecting circuit, and a second flexible printed circuit board having a plurality of voltage detecting lines each connecting the terminal constituting said second terminal row and said voltage detecting circuit, wherein said first flexible printed circuit board is arranged along said first terminal row, and said second flexible printed circuit board is arranged along said second terminal row. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A battery system comprising a plurality of battery modules, wherein
each of said plurality of battery modules includes: -
a battery block composed of a plurality of battery cells; a voltage detecting circuit for detecting a voltage between terminals of each of said battery cells; and a flexible printed circuit board, and said flexible printed circuit board has a configuration in which a voltage detecting line for electrically connecting a positive electrode terminal or a negative electrode terminal of each of said battery cells and said voltage detecting circuit is integrated with a substrate made of a flexible material, said battery block includes said plurality of battery cells that are stacked, a first terminal row in which one of the positive electrode terminal and the negative electrode terminal of each of the battery cells is arranged in a direction in which said battery cells are stacked is constituted, and a second terminal row in which the other terminal of each of the battery cells is arranged in the direction in which said battery cells are stacked is constituted, and said flexible printed circuit board is composed of a first flexible printed circuit board having a plurality of voltage detecting lines each connecting the terminal constituting said first terminal row and said voltage detecting circuit, and a second flexible printed circuit board having a plurality of voltage detecting lines each connecting the terminal constituting said second terminal row and said voltage detecting circuit, wherein said first flexible printed circuit board is arranged along said first terminal row, and said second flexible printed circuit board is arranged along said second terminal row. - View Dependent Claims (8, 9, 10)
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11. An electric vehicle comprising:
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a battery system including a plurality of battery modules; a motor driven by electric power supplied from said plurality of battery modules of said battery system; and drive wheels rotated by a torque of said motor, wherein each of said plurality of battery modules includes; a battery block composed of a plurality of battery cells; a voltage detecting circuit for detecting a voltage between terminals of each of said battery cells; and a flexible printed circuit board, and said flexible printed circuit board has a configuration in which a voltage detecting line for electrically connecting a positive electrode terminal or a negative electrode terminal of each of said battery cells and said voltage detecting circuit is integrated with a substrate made of a flexible material, said battery block includes said plurality of battery cells that are stacked, a first terminal row in which one of the positive electrode terminal and the negative electrode terminal of each of the battery cells is arranged in a direction in which said battery cells are stacked is constituted, and a second terminal row in which the other terminal of each of the battery cells is arranged in the direction in which said battery cells are stacked is constituted, and said flexible printed circuit board is composed of a first flexible printed circuit board having a plurality of voltage detecting lines each connecting the terminal constituting said first terminal row and said voltage detecting circuit, and a second flexible printed circuit board having a plurality of voltage detecting lines each connecting the terminal constituting said second terminal row and said voltage detecting circuit, wherein said first flexible printed circuit board is arranged along said first terminal row, and said second flexible printed circuit board is arranged along said second terminal row.
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Specification