Abstract:
The present invention relates to a production method of a positive electrode active material for a magnesium secondary battery, and the positive electrode active material for a magnesium secondary battery produced by the method, more specifically to: a production method of a positive electrode active material for a magnesium secondary battery which can improve the reaction efficiency by controlling the particle size of the positive electrode active material and reducing the rate of side reaction; and the positive electrode active material for a magnesium secondary battery produced by the method.
Abstract:
PURPOSE: A cathode active material for a lithium ion capacitor and a manufacturing method thereof are provided to enhance the production efficiency by streamlining the lithium doping process. CONSTITUTION: The chemical formula 1 explains a first lithium compound metal oxide. The chemical formula 2 explains a second lithium compound metal oxide. A cathode active material for a lithium ion capacitor includes a carbon-containing material. The first lithium compound metal oxide inserts lithium ions in a voltage region of 0V to 5V. The second lithium compound metal oxide inserts the lithium ions in a voltage region of 1V to 5V. [Reference numerals] (AA) Separator; (BB) Anode; (CC) Cathode; (DD) Current collector
Abstract:
PURPOSE: A positive electrode active material for a lithium secondary battery is provided to minimize the side reaction of a positive electrode active material and electrolyte and to suppress the elution of manganese and degradation at charging and discharging. CONSTITUTION: A positive electrode active material for a lithium secondary battery includes a lithium metal composite oxide core represented by chemical formula 1, Li_wNi_xCo_yMn_(1-x-y-z)M_zO_2; and a coating layer containing fluorine compounds on the lithium metal composite oxide core. In chemical formula 1, 1.2
Abstract:
PURPOSE: A positive electrode material is provided to reduce the diffusion distance of lithium or sodium ion, to have electrochemical activity which can be used as a positive electrode, and to make ion intercalation and deintercalation of lithium or sodium ion. CONSTITUTION: A positive electrode material has a particle size of 1-100 nm and a voltage flat plane of 3.7-4.0 V by discharging, is coated with carbon to increase conductivity, and comprises a compound indicated in chemical formula A_xMnPO_4F, where A is Li or Na or a mixture thereof, and 0
Abstract:
PURPOSE: An anode active material for a lithium ion capacitor and a manufacturing method thereof are provided to improve the capacity, output, and service life of a lithium ion capacitor by the application of carbon complex. CONSTITUTION: A precursor compound is formed by mixing a plurality of carbon system materials(S10). The precursor compound is formed by mixing two or more among hard carbon, soft carbon, artificial graphite, natural graphite, graphitized carbon fiber, graphitization mesocarbon microbead, petroleum coke, resin plastic object, carbon fiber, and pyrolytic carbon. The precursor compound is heat-treated at inactive atmosphere, thereby synthesizing complex precursor(S20). The synthesized complex precursor is uniformly pulverized by mechanical milling. The synthesized complex precursor is carbonized by second heat treatment in inactive atmosphere(S30).
Abstract:
본 발명은 양극 활물질, 그를 갖는 리튬이차전지 및 그의 제조 방법에 관한 것으로, 리튬 코발트 산화물을 기반으로 한 양극 활물질의 4.4V (vs. Li/Li+) 이상의 고전압 및 고온 환경에서의 용량 열화를 억제하고, 전해액에 일부 포함되는 수분으로 기인하여 발생되는 HF로 인한 양극 표면의 열화를 억제하기 위한 것이다. 본 발명은 아래의 화학식으로 표현되는 리튬 코발트 산화물의 표면에 균일하게 나노 크기의 Zr 산화물이 코팅된 리튬이차전지용 양극 활물질을 제공한다. 리튬 코발트 산화물의 표면에 나노 크기의 Zr 산화물과 함께 균일하게 나노 크기의 Si 산화물을 코팅할 수 있다. [화학식] LiCo 1-x M x O 2 (0.00≤x
Abstract translation:本发明涉及负极活性物质,具有该负极活性物质的锂二次电池及其制造方法。 本发明是为了防止在高温环境中的锂钴氧化物的负极活性物质的劣化能力和大于或等于4.4V(相对于Li / Li +)的高电压; 并且防止由包含在电解质中的水分所产生的HF引起的阳极表面的劣化。 本发明提供了一种锂二次电池的正极活性物质,其中纳米级的Zr氧化物被均匀地涂覆在由下列化学式表示的钴酸锂的表面上。 纳米尺寸的氧化硅可以与纳米尺寸的氧化锆均匀地涂覆在钴酸锂的表面上。 [化学式] LiCo_1-xM_xO_2,其中0.00 <= x <0.10; M是选自Mg,Fe,Cu,Zn,Cr,Ag,Ca,Na,K,In,Ga,Ge,V,Mo,Nb,Si,Ti和Zr中的一种以上的金属。