Title:
電池システム
Document Type and Number:
Japanese Patent JP7028072
Kind Code:
B2
Abstract:
To provide a lithium ion battery including a positive electrode active material that may cause phase transition during charging/discharging, in which input restriction (Li deposition suppression) of the lithium ion battery is properly performed.SOLUTION: A battery system includes a lithium ion battery including a positive electrode active material that may cause phase transition during charging/discharging, and an ECU (control unit) for controlling the charging/discharging of the lithium ion battery. The ECU calculates a positive electrode potential using a lithium diffusion equation considering the phase ratio of each phase of the positive electrode active material, calculates, as a negative electrode potential, a value obtained by subtracting the positive electrode potential from an inter-terminal voltage of the battery, and restricts the charging of the lithium ion battery such that the negative electrode potential does not fall below a lithium deposition limit line.SELECTED DRAWING: Figure 3
Inventors:
Hiroyuki Kaiya
Kenji Takahashi
Kenji Takahashi
Application Number:
JP2018105206A
Publication Date:
March 02, 2022
Filing Date:
May 31, 2018
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H01M10/44; G01R31/367; G01R31/382; G01R31/385; H01M10/42; H01M10/48; H02J7/10
Domestic Patent References:
| JP201372659A | ||||
| JP2016A |
Attorney, Agent or Firm:
Fukami patent office