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Title:
USE OF LITHIUM SECONDARY ELECTROCHEMICAL CELLS CONTAINING A BLEND OF A LITHIUM NICKEL OXIDE AND A LITHIUM MANGANESE IRON PHOSPHATE FOR AUTOMOTIVE APPLICATIONS
Document Type and Number:
WIPO Patent Application WO/2021/259991
Kind Code:
A3
Abstract:
The use of a blend of a lithium nickel oxide and a lithium manganese iron phosphate as an active material composition in the cathode of a lithium secondary electrochemical cell for automotive applications, such as hybrid and electric vehicles. This blend allows decreasing the porosity of a lithium manganese iron phosphate-based cathode. It also allows improving the detectability of a gas release in the cell in case of an abnormal operation of the cell. It allows lowering the cell impedance at a low state of charge, typically less than 30 %, and reducing the impedance increase of the cell during the cell lifespan.

Inventors:
TESSIER CÉCILE (FR)
BERNARD PATRICK (FR)
KAMEN NECHEV (US)
MARGEZ CARINE (US)
CHEN XILIN (US)
GOUSSET CÉDRIC (FR)
HERREYRE SYLVIE (FR)
Application Number:
PCT/EP2021/067124
Publication Date:
April 14, 2022
Filing Date:
June 23, 2021
Export Citation:
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Assignee:
ACCUMULATEURS FIXES (FR)
International Classes:
H01M4/36; H01M4/131; H01M4/136; H01M4/525; H01M4/58; H01M4/02
Foreign References:
FR3036538A12016-11-25
EP2357693A12011-08-17
US20140138591A12014-05-22
US20160149205A12016-05-26
US20150017499A12015-01-15
US20160315355A12016-10-27
US20150333323A12015-11-19
Other References:
HEUBNER C. ET AL: "Recent insights into the electrochemical behavior of blended lithium insertion cathodes: A review", ELECTROCHIMICA ACTA, vol. 269, 2 March 2018 (2018-03-02), AMSTERDAM, NL, pages 745 - 760, XP055803661, ISSN: 0013-4686, DOI: 10.1016/j.electacta.2018.02.165
LEE JEONG-SEON ET AL: "Blended cathode materials for all-solid-state Li-ion batteries", JOURNAL OF ALLOYS AND COMPOUNDS, vol. 781, 7 December 2018 (2018-12-07), pages 553 - 559, XP085591513, ISSN: 0925-8388, DOI: 10.1016/J.JALLCOM.2018.12.025
SUN GUIYAN ET AL: "Synergistic Effect between LiNi 0.5 Co 0.2 Mn 0.3 O 2 and LiFe 0.15 Mn 0.85 PO 4 /C on Rate and Thermal Performance for Lithium Ion Batteries", APPLIED MATERIALS & INTERFACES, vol. 10, no. 19, 24 April 2018 (2018-04-24), US, pages 16458 - 16466, XP055897627, ISSN: 1944-8244, DOI: 10.1021/acsami.8b02102
ZHAO XINXIN ET AL: "LiNi 0.5 Co 0.2 Mn 0.3 O 2 -LiMn 0.6 Fe 0.4 PO 4 Mixture with Both Excellent Electrochemical Performance and Low Cost as Cathode Material for Power Lithium Ion Batteries", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 165, no. 2, January 2018 (2018-01-01), pages A142 - A148, XP055897273, ISSN: 0013-4651, DOI: 10.1149/2.0431802jes
QIN WANG ET AL: "A facile method of improving the high rate cycling performance of LiNi1/3Co1/3Mn1/3O2cathode material", JOURNAL OF ALLOYS AND COMPOUNDS, ELSEVIER SEQUOIA, LAUSANNE, CH, vol. 686, 25 November 2016 (2016-11-25), pages 267 - 272, XP029701859, ISSN: 0925-8388, DOI: 10.1016/J.JALLCOM.2016.06.017
Attorney, Agent or Firm:
HIRSCH & ASSOCIES (FR)
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