Title:
PROCESS FOR PRODUCING AN ELECTRODE FOR AN ELECTROCHEMICAL ENERGY STORAGE MEANS AND ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2013/174592
Kind Code:
A3
Abstract:
The present invention provides a process for producing an electrode (12) for an electrochemical energy storage means, especially for a lithium ion battery (10), comprising the process steps of: a) providing a mixture of starting materials for formation of a lithium titanate; b) calcining the mixture of starting materials to form a lithium titanate; c) adding a component comprising sulphur and optionally lithium to the mixture of starting materials to form a lithium titanate before and/or after the calcining, and/or d) adding a pore former to the mixture of starting materials to form a lithium titanate before and/or after the calcining; e) sintering the calcined product; and f) optionally removing the pore former from the calcined and optionally sintered product. Such a process makes it possible to produce electrodes having a particularly defined pore structure, which enables a particularly good capacity stable over a long period. The invention further provides an electrode for use in a lithium ion battery and a lithium ion battery.
Inventors:
KERKAMM INGO (DE)
SORHAGE CONSTANZE (DE)
EISELE ULRICH (DE)
SCHUMANN BERND (DE)
GRIMMINGER JENS (DE)
TENZER MARTIN (DE)
SORHAGE CONSTANZE (DE)
EISELE ULRICH (DE)
SCHUMANN BERND (DE)
GRIMMINGER JENS (DE)
TENZER MARTIN (DE)
Application Number:
PCT/EP2013/058416
Publication Date:
November 26, 2015
Filing Date:
April 24, 2013
Export Citation:
Assignee:
BOSCH GMBH ROBERT (DE)
International Classes:
H01M4/04; H01M4/131; H01M4/136; H01M4/1391; H01M4/1397; H01M4/36; H01M4/485; H01M4/58; H01M4/62; H01M10/052; H01M10/0562
Domestic Patent References:
| WO2010129875A1 | 2010-11-11 | |||
| WO2011145462A1 | 2011-11-24 |
Foreign References:
| US6475673B1 | 2002-11-05 | |||
| EP2131421A1 | 2009-12-09 | |||
| US20080285211A1 | 2008-11-20 |
Other References:
KEIICHI MINAMI ET AL: "Electrical and electrochemical properties of glass-ceramic electrolytes in the systems Li2S-P2S5-P2S3 and Li2S-P2S5-P2O5", SOLID STATE IONICS, vol. 192, no. 1, 1 June 2011 (2011-06-01), pages 122 - 125, XP055066109, ISSN: 0167-2738, DOI: 10.1016/j.ssi.2010.06.018
HIROKAZU KITAURA ET AL: "Electrochemical performance of all-solid-state lithium secondary batteries using Li4Ti5O12 electrode and Li2S-P2S5 solid electrolytes", JOURNAL OF MATERIALS RESEARCH, vol. 25, no. 08, 1 August 2010 (2010-08-01), pages 1548 - 1553, XP055065974, ISSN: 0884-2914, DOI: 10.1557/JMR.2010.0199
HIROKAZU KITAURA ET AL: "Fabrication of electrode-electrolyte interfaces in all-solid-state rechargeable lithium batteries by using a supercooled liquid state of the glassy electrolytes", JOURNAL OF MATERIALS CHEMISTRY, vol. 21, no. 1, 1 January 2011 (2011-01-01), pages 118, XP055065980, ISSN: 0959-9428, DOI: 10.1039/c0jm01090a
AVDEEV ET AL: "X-ray diffraction and Mossbauer spectroscopy studies of LiFe0.5Ti1.5O4 - A new primitive cubic ordered spinel", SOLID STATE SCIENCES, ELSEVIER, PARIS, FR, vol. 9, no. 12, 1 December 2007 (2007-12-01), pages 1135 - 1139, XP022379409, ISSN: 1293-2558
HIROKAZU KITAURA ET AL: "Electrochemical performance of all-solid-state lithium secondary batteries using Li4Ti5O12 electrode and Li2S-P2S5 solid electrolytes", JOURNAL OF MATERIALS RESEARCH, vol. 25, no. 08, 1 August 2010 (2010-08-01), pages 1548 - 1553, XP055065974, ISSN: 0884-2914, DOI: 10.1557/JMR.2010.0199
HIROKAZU KITAURA ET AL: "Fabrication of electrode-electrolyte interfaces in all-solid-state rechargeable lithium batteries by using a supercooled liquid state of the glassy electrolytes", JOURNAL OF MATERIALS CHEMISTRY, vol. 21, no. 1, 1 January 2011 (2011-01-01), pages 118, XP055065980, ISSN: 0959-9428, DOI: 10.1039/c0jm01090a
AVDEEV ET AL: "X-ray diffraction and Mossbauer spectroscopy studies of LiFe0.5Ti1.5O4 - A new primitive cubic ordered spinel", SOLID STATE SCIENCES, ELSEVIER, PARIS, FR, vol. 9, no. 12, 1 December 2007 (2007-12-01), pages 1135 - 1139, XP022379409, ISSN: 1293-2558
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