Yamaha Hatsudoki Kabushiki Kaisha

Mitsuo Kondo

Hideo Kohda

Ryo Saito

Provided is a protection circuit of a lithium-ion secondary battery that, when reaching overdischarging, can suppress any more progress of the overdischarging with a versatile approach and at low costs. A protection circuit of a lithium-ion secondary battery includes: a controlling IC that is driven by electric power of the lithium-ion secondary battery, and configured to detect at least a voltage of the lithium-ion secondary battery; and an interrupting circuit including at least a fuse and a switch, the fuse being arranged between the lithium-ion secondary battery and the controlling IC, the switch being arranged so as to allow a current capable of blowing the fuse to flow from the lithium-ion secondary battery to the fuse when the switch is turned on.

Protection circuit and battery pack of lithium-ion secondary battery

A battery includes a controller configured or programmed to manage battery cells disposed inside a housing. The controller is arranged one of forward or rearward of the battery cells. The housing includes right and left housing half bodies which define right and left portions of the housing, respectively, and are assembled together in a lateral direction. The battery prevents an increase in the width of a saddle-type electric vehicle while securing a sufficient capacity of the housing.

Growing community of inventors

Iwata, Japan

Mitsuo Kondo