デュアルイオンバッテリ

Japanese Patent JP6864033

B2

To provide a dual ion battery having a high charge/discharge capacity and a long cycle life, especially a dual ion battery which has a long cycle life under a high-temperature environment and which is suppressed in the decrease in the charge/discharge capacity under a low-temperature environment.SOLUTION: A dual ion battery comprises: an electrolyte solution containing a nonaqueous solvent and an electrolyte salt dissolved in the nonaqueous solvent; a positive electrode containing a positive electrode active material capable of occluding and releasing an anion of the electrolyte salt; and a negative electrode containing a negative electrode active material capable of occluding and releasing a cation of the electrolyte salt. The positive electrode active material includes graphite. The negative electrode active material includes a spinel type lithium titanium oxide having a general formula represented by Li4Ti5O12. The electrolyte salt includes a lithium hexafluorophosphate and a tetrafluoroborate, in which the content of the tetrafluoroborate is within a range of 0.15 mol or more and 0.60 mol or less to 1 mol of the lithium hexafluorophosphate.SELECTED DRAWING: None

Naoya Kobayashi
Toshihiro Koyama
Toshihiro Asada
Ryota Ishii
Kaede Soeda
Takahashi Takuya

JP2019089335A

April 21, 2021

May 09, 2019

Click for automatic bibliography generation  

TPR Co., Ltd.
I-Electrolite Co., Ltd.

H01M10/052; H01M4/485; H01M4/583; H01M4/66; H01M10/0568; H01M10/0569

JP2020187825A
JP2018041636A
JP2018152158A
JP2009224098A
JP2006173099A
JP3119667A
JP2016076331A
JP6575891B1

WO2020110230A1

Field Saki Satoshi
Eisuke Ito
Taichi Hasegawa

Previous Patent: 製靴用ミシン

Next Patent: 剃刀の刃