LITHIUM ION SECONDARY BATTERY SYSTEM

WIPO Patent Application WO/2012/014289

A1

Provided is a lithium ion secondary battery system which is safer and has higher reliability. This lithium ion secondary battery system is obtained by connecting a plurality of batteries in series, in each of said batteries a plurality of lithium ion secondary cells being connected in parallel. A lithium ion secondary cell comprises a protection circuit, and the protection circuit has: a charge/discharge-side connection terminal; a first fuse and a second fuse, which are connected in series so as to connect the connection terminal and the positive-side electrode of the lithium ion secondary cell; a switching element that is arranged so as to connect a wiring line between the first fuse and the second fuse and the negative electrode of the lithium ion secondary cell; and a detection circuit that is connected to the charge/discharge-side connection terminal, the switching element and the negative electrode of the lithium ion secondary cell and controls on/off of the switching element.

WO/2000/045496	METHOD AND APPARATUS FOR COMMUNICATION BETWEEN AN ELECTRONIC DEVICE AND A CONNECTED BATTERY
JP08237861	PARALLL CHARGE CONTROLLER, ELECTRIC ENERGY STORAGE UNIT AND CHARGE CONTROLLING METHOD
JP2000299135	BATTERY CHARGING/DISCHARGING INSPECTION DEVICE

HIRAYAMA Masahiro (Nemoto 2nd Building 2F 2-11-23, Shibasaki-dai, Abiko-sh, Chiba 76, 〒2701176, JP)

JP2010/062650

February 02, 2012

July 28, 2010

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LTEL CORPORATION (Nemoto 2nd Building 2F, 2-11-23 Shibasaki-dai, Abiko-sh, Chiba 76, 〒2701176, JP)
株式会社エルテル (〒76 千葉県我孫子市柴崎台２－１１－２３　根基第２ビル２階 Chiba, 〒2701176, JP)

H02J7/00

TAKAHASHI Masayoshi (1-3-703, Chiharadai-nishi Ichihara-sh, Chiba 43, 〒2900143, JP)

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