Title:
BATTERY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/167602
Kind Code:
A1
Abstract:
[Problem] To accurately estimate the lithium concentration distribution within an active material.
[Solution] A battery system has: a lithium-ion secondary battery (1) using a two-phase coexistence type positive electrode active material (141b); and a controller (300) for calculating the lithium concentration distribution within the active material (141b, 142b) of the lithium-ion secondary battery by using a diffusion equation in which a boundary condition is set. The controller corrects a diffusion coefficient used in the diffusion equation, according to history data representing the state of charge of the lithium-ion secondary battery to date.
Inventors:
TAKAHASHI KENJI (JP)
KAIYA HIROYUKI (JP)
TODOROKI CHIHAYA (JP)
KAIYA HIROYUKI (JP)
TODOROKI CHIHAYA (JP)
Application Number:
PCT/JP2013/002482
Publication Date:
October 16, 2014
Filing Date:
April 11, 2013
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
International Classes:
H01M10/48; G01R31/36; H02J7/00
Foreign References:
| JP2009210477A | 2009-09-17 | |||
| JP2010257984A | 2010-11-11 | |||
| JP2008243373A | 2008-10-09 | |||
| JP2008241246A | 2008-10-09 |
Attorney, Agent or Firm:
MIZUNO, Katsufumi et al. (JP)
Katsufumi Mizuno (JP)
Katsufumi Mizuno (JP)
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