Title:
CARBONATE PRECURSORS FOR HIGH LITHIUM AND MANGANESE CONTAINING CATHODE MATERIALS
Document Type and Number:
WIPO Patent Application WO/2015/033246
Kind Code:
A3
Abstract:
A carbonate precursor compound of a lithium manganese based oxide powder for a positive electrode of a rechargeable battery, the oxide having the general formula Li1+vM1-vO2, wherein -0.03≤v≤0.25, wherein M is a composition comprising at least 50mol% of manganese, and wherein the carbonate precursor compound has a secondary particle size D50 expressed in µm, and a tap density TD expressed in g/cm3, with either ≤ TD ≤ (2.78*D50)/(D50+7.23) and the compound having a particle size distribution having a span S≤1.8 with S=(D90-D10)/D50; or 1 ≤ TD ≤ (2.78*D50)/(D50+7.50).
Inventors:
DE PALMA RANDY (KR)
KIM JIHYE (KR)
DRIESEN KRIS (BE)
PAULSEN JENS (KR)
HU JIN (BE)
KIM JIHYE (KR)
DRIESEN KRIS (BE)
PAULSEN JENS (KR)
HU JIN (BE)
Application Number:
PCT/IB2014/064000
Publication Date:
July 02, 2015
Filing Date:
August 21, 2014
Export Citation:
Assignee:
UMICORE NV (BE)
UMICORE KOREA LTD (KR)
UMICORE KOREA LTD (KR)
International Classes:
H01M4/525; C01B32/60; C01D15/00; C01G53/00; H01M4/505
Foreign References:
| US20130032753A1 | 2013-02-07 | |||
| JP2013075773A | 2013-04-25 | |||
| US20110049420A1 | 2011-03-03 | |||
| CN102790208A | 2012-11-21 | |||
| KR20130043938A | 2013-05-02 |
Other References:
GUAN, XIANTONG ET AL.: "Enhancing the electrochemical performance of Lil.2Ni0.2Mn0.602 by surface modification with nickel-manganese composite oxide", JOURNAL OF SOLID STATE ELECTROCHEMISTRY, vol. 17, no. 7, 7 April 2013 (2013-04-07), pages 2087 - 2093, XP055257599
Attorney, Agent or Firm:
KNOCKAERT, Guy (Watertorenstraat 33, Olen, BE)
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