Title:
Manufacturing method of non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery
Document Type and Number:
Japanese Patent JP6304198
Kind Code:
B2
Abstract:
A method of manufacturing a nonaqueous electrolyte secondary having a positive electrode active material layer that includes a positive electrode active material and a conductive additive, the positive electrode active material has a first film formed on a surface of a composite oxide including at least lithium and manganese, the conductive additive has a second film formed on a surface of a carbon material, and the first film and the second film include fluorine, manganese, and phosphorus. The method includes: manufacturing (S101) a positive electrode sheet (140) by forming a positive electrode active material layer (142), which includes a positive electrode active material, a conductive additive, and trilithium phosphate, on a positive electrode current collector foil (141); accommodating (S102) the positive electrode sheet (140), a negative electrode sheet (150), and an electrolytic solution (120) in a battery case; and charging (S103) a battery after the accommodation. During the manufacturing of the positive electrode sheet, a positive electrode active material (170) is a composite oxide including at least lithium and manganese. During the manufacturing of the positive electrode sheet, a conductive additive (180) is obtained by attaching at least one of manganese or manganese oxide to a surface of a carbon material.
Inventors:
Akiyama Naohisa
Kitayoshi Masanori
Takashi Miura
Yukiko Hori
Masashi Ueda
Kitayoshi Masanori
Takashi Miura
Yukiko Hori
Masashi Ueda
Application Number:
JP2015216854A
Publication Date:
April 04, 2018
Filing Date:
November 04, 2015
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H01M10/052; H01M4/36; H01M4/505; H01M4/62; H01M10/0568; H01M10/058
Domestic Patent References:
| JP2015165463A | ||||
| JP2010225498A | ||||
| JP2010232001A | ||||
| JP201299245A | ||||
| JP2014103098A | ||||
| JP201259690A |
Foreign References:
| WO2012073874A1 | ||||
| WO2002021617A1 | ||||
| WO2006018921A1 | ||||
| WO2008015779A1 |
Attorney, Agent or Firm:
Patent Business Corporation Cosmos Patent Office