Title:
QUANTITATIVE ANALYSIS METHOD OF CARBON-BASED HYBRID ANODE
Document Type and Number:
WIPO Patent Application WO/2021/091235
Kind Code:
A1
Abstract:
Provided is a method for quantitative analysis of a carbon-based hybrid anode, wherein the method comprises the steps of: preparing a secondary battery having a carbon-based hybrid anode including a carbon-based anode active material and a non-carbon-based anode active material; measuring, by using an X-ray diffractometer, the d-spacing of the carbon-based anode active material in the carbon-based hybrid anode during charging and discharging of the secondary battery, and plotting a graph of changes in d-spacing value versus charge/discharge capacity (X-axis); and on the plotted graph, identifying the inflection point of the slope of the graph while the discharge is in progress, and quantifying, of the total discharge capacity of the secondary battery, the capacity contributed by the carbon-based anode active material and the non-carbon-based anode active material.
Inventors:
YOON HYO-JUNG (KR)
KIM SO-YOUNG (KR)
LEE EUN-JU (KR)
KIM SO-YOUNG (KR)
LEE EUN-JU (KR)
Application Number:
PCT/KR2020/015348
Publication Date:
May 14, 2021
Filing Date:
November 04, 2020
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
G01N23/207
Foreign References:
| KR20110016378A | 2011-02-17 | |||
| KR20090066020A | 2009-06-23 | |||
| KR20110134793A | 2011-12-15 | |||
| KR20160064881A | 2016-06-08 | |||
| JP2009176533A | 2009-08-06 | |||
| KR20190139764A | 2019-12-18 |
Other References:
See also references of EP 4043872A4
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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