Abstract:
The objective of the present invention is to provide a lithium ion battery using a mixed conductive material which: promotes a battery reaction by mixing the mixed conductive material, capable of transferring electrons and lithium ions at the same time, with an active material; effectively transfers electrons as byproducts formed by the battery reaction to a current collector; and thus can extend the lifespan of the battery and enhance output characteristics of the battery. The present invention provides the lithium ion battery using a mixed conductive material which includes: a cathode comprising cathode laminated materials; an anode comprising anode laminated materials; and an electrolyte which separates the cathode and the anode. The cathode laminated materials and the anode laminated materials include the mixed conductive material capable of transferring electrons and lithium ions at the same time.
Abstract:
PURPOSE: A lithium-air hybrid battery is provided to minimize the use of liquid electrolyte and to prevent the volatilization of the liquid electrolyte by separating a lithium metal negative electrode and porous air positive electrode based on an impermeable ion-conductive glass ceramic. CONSTITUTION: A lithium-air hybrid battery comprises an ion-conducting glass ceramic(30); a lithium metal negative electrode(10) which contains an injected liquid electrolyte(12) and is attached to one side of the ion-conducting glass ceramic; a porous electrolyte air positive electrode(20) which is placed on the other side of the ion-conducting glass ceramic and contains the coated and dried mixture of carbon, a catalyst, a binder, a solid electrolyte(22), a solvent and filler; a negative electrode current collector(14) attached to the outer surface of the lithium metal negative electrode; a positive electrode current collector(24) attached to the outer surface of the porous solid electrolyte air positive electrode.
Abstract:
본 발명은 전자전도도 조절이 가능한 물질인 Li-LLT를 활용하여 액체 전해질이 적용되는 전지, 고체 전해질이 적용되는 전고체전지 및 다공성 구조체를 활용한 전지의 양극 및 음극의 이온전도도 및 전자전도도를 향상시킬 수 있는 리튬이차전지용 전자전도도 조절물질 및 이를 이용한 리튬이차전지용 전극제조방법을 제공하는데 그 목적이 있다. 상기한 목적을 달성하기 위하여 본 발명에 따른 리튬이차전지용 전자전도도 조절물질은 (La 2 /3- x Li 3x □ 1/3-2x )TiO 3 으로 이루어지고, x 값을 조절하여 빈공간 □이 차지하는 비율을 조절하며, Li 금속과 접촉하는 방식으로 전자전도도를 조절할 수 있도록 된 Li-LLT를 포함하는 것을 특징으로 한다.
Abstract:
The present invention relates to a protective structure for ion conductive channel of an electrolyte membrane in a lithium-ion secondary battery and, more particularly, to a protective structure for ion conductive channel of an electrolyte membrane in a lithium-ion secondary battery which is applied with lithium compounds having a specific structure of orientation on the surface of lithuim metal thin film formed on the surface of a specific lithium compound electrolyte, in order to reduce the interfacial resistance of battery cells, thus improving the performance of the battery cells.
Abstract:
본 발명은 기존의 알루미늄 배터리 케이스 소재 대비 절연성, 경량성 등이 우수한 두 종류의 방열 복합재를 이용하여 공기와 접촉면적을 극대화함으로써, 방열 특성을 향상시킬 수 있는 파우치 셀의 배터리 케이스에 관한 것이다. 본 발명은 내부에 전극조립체를 수용하고, 표면에 다수의 방열돌기를 가지므로 공기와의 접촉표면적을 극대화시키는 본체부; 및 상기 본체부의 양측 단부를 커버하는 캡부;를 포함하여, 상기 방열돌기에 의해 방열 특성이 향상되는 것을 특징으로 하는 파우치 셀의 배터리 케이스를 제공한다.
Abstract:
PURPOSE: A positive electrode active material is provided to improve initial capacity near to theoretical capacity because of improving conductivity of a positive electrode in a lithium-sulfur battery, and to increase sulfur-using rate by minimizing the amount of polysulfide lost in the positive electrode during charging/discharging. CONSTITUTION: A positive electrode active material comprises a sulfur-carbon composite formed by complexation of sulfur compound spheres and carbon material particles. A manufacturing method of the positive electrode active material comprises: a step of preparing specific sulfide(110) and carbonaceous material(120-122); a step of obtaining carbonaceous material powder and sulfide in which moisture is removed, by drying the sulfide and the acid-treated carbonaceous material; and a step of mixing the sulfide and the carbonaceous material powder, and obtaining a sulfur-carbon composite through a complexation by applying shear stress to the mixture.