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1. (WO2018135668) LITHIUM ION BATTERY PACK

Pub. No.:    WO/2018/135668    International Application No.:    PCT/JP2018/002025
Publication Date: Fri Jul 27 01:59:59 CEST 2018 International Filing Date: Wed Jan 24 00:59:59 CET 2018
IPC: H01M 10/0525
H01M 4/505
H01M 4/525
H01M 4/58
H01M 4/587
Applicants: YAMAHA HATSUDOKI KABUSHIKI KAISHA
ヤマハ発動機株式会社
Inventors: KUDO, Hosei
工藤 芳清
ARAI, Juichi
新井 寿一
Title: LITHIUM ION BATTERY PACK
Abstract:
Provided is a lithium ion battery pack that can be used in place of a lead storage battery, and that differs from previously proposed lithium ion battery packs. A lithium ion battery pack (10) is provided with first through fourth lithium ion cells (121-124) connected in series. The voltage (FV1) when the charging rate of the first lithium ion cell (121) is at 100% differs from the voltage (FV2) when the charging rate of the second lithium ion cell (122) is at 100%. The initial voltage of the lithium ion battery pack (10) is set within the range of 14-15V.