Titles:
Separator and lithium-sulfur battery comprising the same
분리막 및 이를 포함하는 리튬-황 전지
Abstracts:
The present invention relates to a separator for a lithium-sulfur battery for adsorbing lithium polysulfide and a method for producing the separator, and a lithium-sulfur battery employing the separator absorbs lithium polysulfide to prevent diffusion to the negative electrode. Lt; / RTI & gt; In addition, since the adsorbing film composition can be coated on the porous substrate without any solvent, the manufacturing process is simple and there is no fear of addition of impurities.
본 발명은 리튬 폴리설파이드를 흡착하기 위한 리튬-황 전지용 분리막 및 이의 제조방법에 관한 것으로, 이를 적용한 리튬-황 전지는 리튬 폴리설파이드를 흡착하여 음극으로의 확산이 차단되므로 개선된 전지의 용량 및 수명 특성을 나타낸다. 또한 별도의 용매없이 흡착막 조성물을 다공성 기재에 코팅할 수 있으므로, 제조 공정이 간단하고, 불순물 첨가의 우려가 없는 장점이 있다.
Applicant:
LG CHEMICAL LTD [KR] (주식회사 엘지화학)
Inventors:
KIM SUN JIN [KR] (김선진)
KOH DONG WOOK [KR] (고동욱)
KIM TAEK GYOUNG [KR] (김택경)
YANG DOO KYUNG [KR] (양두경)
Titles:
High-performance lithium-sulfur battery cathode material and preparation method thereof
种高性能锂硫电池正极材料及其制备方法
Abstracts:
The invention discloses a high performance lithium sulfur battery cathode material, comprising elemental sulfur and MnO/PPy composite microspheres for storing elemental sulfur, wherein the MnO/PPy composite microspheres are prepared by dispersing manganese dioxide and pyrrole monomers. In the water, an acid reaction is carried out to separate the MnO/PPy composite microspheres; the preparation method of the positive electrode material of the present invention is: mixing elemental sulfur with MnO/PPy composite microspheres, and heating the reaction to obtain a high-performance lithium-sulfur battery positive electrode. The electrode material prepared by the method can improve the stability of the electrode structure, improve the conductivity of the electrode material, and can effectively improve the safety and service life of the lithium-sulfur battery.
