Abstract:
에너지 밀도를 향상시키고 전지의 형상을 더욱 자유롭게 구성하는 것이 가능한 전극 조립체 및 이를 구비하는 이차 전지를 개시한다. 개시된 전극 조립체는, 제 1 전극판, 제 2 전극판 및 상기 제 1 전극판과 제 2 전극판 사이에 개재된 분리막을 함께 권취하여 형성된 각형의 전극 젤리롤; 상기 제 1 전극판과 연결되어 상기 전극 젤리롤의 권회축 방향으로 인출되는 제 1 전극탭; 및 상기 제 2 전극판과 연결되어 상기 전극 젤리롤의 권회축 방향으로 인출되는 제 2 전극탭;을 포함하며, 상기 제 1 전극탭과 제 2 전극탭 중에서 적어도 하나는 인출 방향으로부터 반대 방향으로 절곡되어 상기 전극 젤리롤의 외부 표면에 대향하도록 배치될 수 있다.
Abstract:
규칙적 중형다공성 금속 산화물(ordered mesoporous metal oxide) 및 상기 규칙적 중형다공성 금속 산화물에 내장된(embedded) 적어도 하나의 전도성 탄소를 포함하는 복합체를 포함하는 전극 활물질, 그 제조방법, 이를 포함한 전극 및 상기 전극을 포함한 리튬 전지가 제공된다.
Abstract:
Provided are a polymer comprising a first repeating unit represented by chemical formula 1, a polymer composition for a lithium secondary battery including the same, an electrode for the lithium secondary battery including the polymer composition, and the lithium secondary battery comprising the same. In the chemical formula 1, R`, A, A`, Y, and Y` are the same as described in the specification.
Abstract:
Disclosed are a negative electrode active material, a method for producing the same, a negative electrode including the negative electrode active material, and a lithium secondary battery including the negative electrode. The negative electrode active material disclosed herein contains a titanium oxide nanotube, and the Raman spectrum of the negative electrode active material has a characteristic peak positioned in a Raman shift of 680 to 750 cm^(-1).
Abstract:
The present invention relates to a flexible secondary battery. The flexible secondary battery according to one embodiment of the present invention may include a fixing member which fixes one end of a laminated electrode structure. Therefore, even though the other end of the laminated electrode structure moves, stability can be maintained. More specifically, the present invention relates to a flexible secondary battery which additionally includes a protective layer on the outer surface of the laminated electrode structure. The thickness of the protective layer is 15 micrometers to 1 mm.
Abstract:
PURPOSE: A lithium titanium oxide is provided to manufacture a high-grade lithium battery by having a high purity and crystallizing property by satisfying a specific range of full width at half maximum 1 (FWHM1)/full width at half maximum 2 (FWHM2). CONSTITUTION: A lithium titanium oxide is a spinel type, and FWHM1 /FWHM2 in the range of 5-50 kHz is less than 1.70. The FWHM1 is a full width at half maximum of 7 Li peak in the range of -10 ppm to +10 ppm among a solid state-NMR spectrum of the lithium titanium oxide. The FWHM2 is a full width at half maximum of 7 Li peak in the range of -10 ppm to +10 ppm among a solid state-NMR spectrum of the lithium chloride standard reagent (STD). The FWHM1 and the FWHM2 are measured in the identical spinning rate (kHz). The manufacturing method of the lithium titanium oxide comprises the following steps. A mixture which includes a lithium-containing precursor and a titanium-containing precursor is prepared. The lithium titanium oxide is manufactured by heat treating the mixture. The titanium-containing precursor includes a second component, and the second component includes at least one of phosphorus (P) and potassium (K).