参考文献

LG Chem, Ltd.; YOON, Seok-Hee; BAE, Jae-Soon; LEE, Youn-Gu; IM, Sung-Gap; LEE, Jae-Chol; KIM, Ji-Eun; KIM, Kong-Kyeom; SON, Se-Hwan; HAN, Young-Kyu Patent: EP1465874 B1, 2013 ; Location in patent: Paragraph 0053 ;