Method For Pre Detecting Defective Product From Porous Polymer

Method For Pre Detecting Defective Product From Porous Polymer Substrate For Separator

Abstract: Disclosed is a method for pre-detecting a defective product from a porous polymer substrate for a separator, the method comprising the steps of: selecting a porous polymer substrate having a plurality of pores to detect whether it is a good product or a defective product; observing the selected porous polymer substrate with a scanning electron microscope (SEM) to obtain images of the porous polymer substrate; quantifying an average pore distribution index (PDI) by using the obtained images of the porous polymer substrate; calibrating the quantified average PDI to obtain a calibrated average PDI; confirming whether the quantified average PDI is 60 a.u or less; and classifying as a good product when it is confirmed that the quantified average PDI is 60 a.u or less, and classifying as a defective product when it is confirmed that the quantified average PDI is greater than 60 a.u.

Patent Information

Application #

Filing Date

09 May 2023

Publication Number

29/2024

Publication Type

INA

Invention Field

PHYSICS

Status

Email

Parent Application

Applicants

LG ENERGY SOLUTION, LTD.

Tower1, 108, Yeoui-daero, Yeongdeungpo-Gu, Seoul 07335

Inventors

1. BAE, Won-Sik

LG Chem Research Park, 188, Munji-ro Yuseong-Gu, Daejeon 34122