BATTERY SYSTEM
First Claim
1. A battery system comprising:
- a first secondary battery including a stacked electrode body connected to a first electrode terminal and a second electrode terminal, the stacked electrode body being housed in a first battery can, the first electrode terminal and the first battery can being electrically connected through a first conductive path;
a second secondary battery including a stacked electrode body connected to a third electrode terminal and a fourth electrode terminal, the stacked electrode body being housed in a second battery can, the third electrode terminal and the second battery can being electrically connected through a second conductive path;
a first battery can voltage sensor that measures a first voltage of the first battery can;
a second battery can voltage sensor that measures a second voltage of the second battery can; and
a control device that receives information corresponding to the measured first and second voltages of the first and second battery can voltage sensors,wherein the control device activates expansion detection information based on the information when the first voltage increases and the second voltage decreases substantially simultaneously with the increase.
1 Assignment
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Accused Products
Abstract
A battery system including: a secondary battery (7A) including a stacked electrode body housed in a battery can (11A), a positive electrode terminal and the battery can (11A) being electrically connected; a secondary battery (7B) including a stacked electrode body housed in a battery can (11B), a positive electrode terminal and the battery can (11B) being electrically connected; a cell can voltage sensor (9A) that measures a first voltage of the battery can (11A); a cell can voltage sensor (9B) that measures a second voltage of the battery can (11B); and a BMU (15) that receives information corresponding to the measured first and second voltages of the cell can voltage sensors (9A, 9B). The BMU (15) activates expansion detection information based on the information when the first voltage increases and the second voltage decreases substantially simultaneously with the increase, thereby enabling detection of presence or absence of expansion.
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Citations
5 Claims
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1. A battery system comprising:
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a first secondary battery including a stacked electrode body connected to a first electrode terminal and a second electrode terminal, the stacked electrode body being housed in a first battery can, the first electrode terminal and the first battery can being electrically connected through a first conductive path; a second secondary battery including a stacked electrode body connected to a third electrode terminal and a fourth electrode terminal, the stacked electrode body being housed in a second battery can, the third electrode terminal and the second battery can being electrically connected through a second conductive path; a first battery can voltage sensor that measures a first voltage of the first battery can; a second battery can voltage sensor that measures a second voltage of the second battery can; and a control device that receives information corresponding to the measured first and second voltages of the first and second battery can voltage sensors, wherein the control device activates expansion detection information based on the information when the first voltage increases and the second voltage decreases substantially simultaneously with the increase. - View Dependent Claims (2, 3, 4, 5)
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Specification