CATHODE FOR SECONDARY BATTERY, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

WIPO Patent Application WO/2017/074109

A1

The present invention relates to a cathode for a secondary battery, a method for preparing the same, and a lithium secondary battery comprising the same, the cathode for a secondary battery comprising: a cathode current collector; and a cathode mixture layer coated on at least one side of the cathode current collector, wherein the cathode mixture layer comprises a cathode active material, a conductive material, a binder, and bimodal-type pores composed of a first pore and a second pore which are different in the maximum diameter, wherein the conductive material and the cathode active material are contained at a volume ratio (K1) of 0.08 to 0.32 : 1, the volume ratio of the conductive material to the total pores is 0.1 to 0.33 : 1, the porosity is 30 volume% to 45 volume%, the maximum diameter of the first pore and the second pore is less than 1 ㎛, and the average diameter ratio (K) of the first pore to the second pore is 0.13 to 0.27 : 1.

JP6814225	Lithium secondary battery
JP5281706	Current collectors, current collector manufacturing methods, electrodes and secondary batteries
JP2006294272	SECONDARY BATTERY, BATTERY PACK, AND VEHICLE MOUNTING THESE

CHOI YOUNG GEUN (KR)
KIM KANG KUN (KR)
OH SONG TAEK (KR)
CHOI JOO YOUNG (KR)
YANG JI HYE (KR)

PCT/KR2016/012273

May 04, 2017

October 28, 2016

Click for automatic bibliography generation  

LG CHEMICAL LTD (KR)

H01M4/13; H01M4/04; H01M4/139; H01M4/36; H01M4/62; H01M10/052

KR20150016581A	2015-02-12
JP2007109636A	2007-04-26
US20120219855A1	2012-08-30
KR20130087038A	2013-08-05
KR20120023849A	2012-03-13

See also references of EP 3370278A4

BAE, KIM & LEE IP GROUP (KR)

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