Abstract:
PURPOSE: A film type lithium primary battery is provided to offer the three times increased capacity of the battery compare to a conventional simple lamination method. CONSTITUTION: A film type lithium primary battery(100) includes a first current collector(10), a second current collector(20), and a polymeric electrolyte layer(30) formed in between the current collectors. The first current collector includes a first electrode tab(12), a first electrode plate(14) on one surface, and a folding structure curved with an internal space in between a first portion(14A) and a second portion(14B) on the first electrode plate. The second current collector includes a second electrode tab(22), and a second electrode plate(24) on both surfaces of the second current collector.
Abstract:
본 발명은 리튬 이차전지용 일차원 구조 티타늄옥사이드 나노튜브클러스터-흑연 음극 활물질의 제조방법 및 이로부터 얻은 음극 활물질에 관한 것으로, 상기 제조방법은 마이크로 크기의 구형 티타늄옥사이드 분말과 마이크로 크기의 흑연 분말을 강알칼리 수용액중에서 수열합성하는 단계; 수열합성된 티타늄옥사이드 나노튜브클러스터-흑연 복합체의 pH값을 조정하는 단계; 및 티타늄옥사이드 나노튜브클러스터-흑연 복합체를 열처리하는 단계를 포함하며, 이와 같은 방법으로 얻은 일차원 구조 티타늄옥사이드 나노튜브클러스터-흑연 음극 활물질은 고속 충방전에서의 안정된 사이클 특성을 제공할 수 있다.
Abstract:
PURPOSE: A method for manufacturing a positive electrode active material is provided to prepare a one-dimensional positive electrode active material with chestnut type morphology satisfying both high energy density and high power property. CONSTITUTION: A method for manufacturing a one-dimensional nanocluster positive electrode active material comprises the steps of: forming a nanocluster manganese dioxide precursor having a chestnut type morphology; synthesizing the one-dimensional nanocluster positive electrode active material having the chestnut type morphology by inserting lithium to the formed precursor; applying water-soluble polymers to the surface of the positive electrode active material particles; adsorbing metal ions to the surface of positive electrode active material particles on which the water-soluble polymers are applied; and sintering the positive electrode active material particles.
Abstract:
PURPOSE: A self-chargeable power supply module for 3V operating sensor node is provided to enable semi-permanent use, to avoid replacement, and to enable remote and self charging. CONSTITUTION: A self-chargeable power supply module for 3V operating sensor node comprises: a multiple energy collection element(120) converting the energy obtained from each energy conversion source into electrical energy; energy management chips(130a) which controls the electrical energy by cutting off the minimum and maximum power of the electrical energy; a lithium secondary battery(140) storing energy or electricity controlled by the energy management chips; an output management chip(130b) distributing the stored electricity; and a plurality of output load devices(150) consuming the distributed electricity.
Abstract:
PURPOSE: A method for preparing one-dimensional titanium oxide nanotubecluster anode active material for lithium rechargeable batteries is provided to improve the capacity through the increase of a lithium insertion coefficient to titanium oxide nanotubecluster by improving reaction area with electrolyte. CONSTITUTION: A method for preparing one-dimensional titanium oxide nanotubecluster anode active material for lithium rechargeable batteries comprises the steps of: performing hydrothermal synthesis of spherical titaniumoxide micro powder in strong alkali solution; controlling the pH value of the hydrothermally synthesized titanium oxide nanotubecluster; and heat-treating the titanium oxide nanotubecluster in which the pH value is controlled.
Abstract:
PURPOSE: A film type lithium primary battery and a manufacturing method thereof are provided to easily bend the battery without influencing the safety and stability of the battery, and to remove the install limitation when mounting the battery inside a tag. CONSTITUTION: A film type lithium primary battery(100) comprises the following: a first current collector(10) including a folding structure with a first electrode tab(12), and a first electrode plate(14) in which a first part(14A) and a second part(14B) of the first electrode plate are facing each other; a second current collector(20) including a second electrode tab(22), and a second electrode plate(24) in which the first part and the second part of the second electrode plate are facing each other; and a polymeric electrolyte layer(30) located in between the first and the second electrode plates.