Title:
非水系二次電池
Document Type and Number:
Japanese Patent JP5817005
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enhance input and output characteristics by an optimal combination of an electrolytic solution and a negative electrode active material.SOLUTION: A nonaqueous secondary battery comprises: an electrolytic solution; and a negative electrode having a negative electrode active material layer. The electrolytic solution contains a metal salt and an organic solvent having a heteroatom; as to intensities of peaks originating from the organic solvent in vibrational spectra, the following relation holds: I>I, where Irepresents an intensity of an original peak of the organic solvent, and Irepresents an intensity of a peak resulting from shift of the peak. The negative electrode active material layer includes graphite of which the ratio (Long axis/Short axis) of the long axis to the short axis is 1-5.
Inventors:
Atsuo Yamada
Yuki Yamada
Yoshihiro Nakagaki
Tomoyuki Kawai
Kohei Mase
Yuki Hasegawa
Nobuhiro Goda
Yuki Yamada
Yoshihiro Nakagaki
Tomoyuki Kawai
Kohei Mase
Yuki Hasegawa
Nobuhiro Goda
Application Number:
JP2014186342A
Publication Date:
November 18, 2015
Filing Date:
September 12, 2014
Export Citation:
Assignee:
National University Corporation Tokyo University
International Classes:
H01M10/052; H01M4/587; H01M10/0568; H01M10/0569
Domestic Patent References:
| JP2004511887A | ||||
| JP11154513A | ||||
| JP2001507043A |
Foreign References:
| WO2006115023A1 |
Other References:
八重樫 諒,溶媒分子の配位状態制御による有機溶液の新機能発現,第53回電池討論会 講演要旨集,日本,(公社)電気化学会電池技術委員会,2012年11月13日,p.507
Attorney, Agent or Firm:
Patent business corporation Kyoritsu