Abstract:
PROBLEM TO BE SOLVED: To provide a positive electrode material for a lithium secondary battery containing a lithium manganese fluorophosphate (LiMnPOF), and a method for manufacturing the same.SOLUTION: The method for manufacturing the positive electrode material for a lithium secondary battery comprises the steps of: (i) synthesizing a positive electrode material NaMnPOF by applying pretreatment to a mixture obtained by homogeneously mixing a sodium (Na) oxide or a precursor thereof, a manganese (Mn) oxide or a precursor thereof, a phosphorus (P) oxide or a precursor thereof, and a fluoride (F) or a precursor thereof by means of a ball mill, and firing the mixture; and (ii) synthesizing LiMnPOF by intercalating lithium into the positive electrode material synthesized in the previous step, by an ion exchange method.
Abstract:
Offenbart sind Zusammensetzung und Verfahren zur Herstellung einer Kathode für einen Akkumulator, wobei ein Fluorophosphat der Formel LixNa2-xMnPO4F als ein Elektrodenmaterial verwendet wird. LixNa2-xMnPO4F wird durch partielle Substitution einer Natriumstelle mit Lithium durch ein chemisches Verfahren hergestellt. LixNa2-xMnPO4F, das gemäß der Erfindung hergestellt wird, stellt ein Kathodenmaterial für eine Lithiumbatterie mit verbesserter elektrochemischer Aktivität bereit.
Abstract:
Ein Kathodenmaterial für einen Akkumulator und ein Herstellungsverfahren desselben sind offenbart. Das Kathodenmaterial enthält einen Lithiummanganphosphat LiMnPO4/Natriummanganfluorophosphat Na2MnPO4F-Verbundstoff, bei welchem LiMnPO4 und Na2MnPO4F verschiedene Kristallstrukturen aufweisen. Zudem kann das Verfahren zum Herstellen des Kathodenmaterials in einem einzigen Schritt durch eine Hydrothermalsynthese erfolgen, was die Produktionszeit und Produktionskosten erheblich verringert. Zudem liefert die Offenbarung, dass die elektrische Leitfähigkeit des Kathodenmaterials durch Kohlenstoffbeschichtung verbessert werden kann und liefert dadurch ein Kathodenmaterial mit einer ausgezeichneten elektrochemischen Aktivität.
Abstract:
PURPOSE: A negative electrode material for non-aqueous lithium secondary battery is provided to restrain the deterioration due to precipitation of metal lithium, and to obtain capacity and charging/discharging efficiency similar with existing transition metal oxide, or superior. CONSTITUTION: A negative electrode material for non-aqueous lithium secondary battery comprises lithium vanadium metal oxide formed by synthesizing lithium material, vanadium material, and hetero metal material. A manufacturing method of the negative electrode material comprises: a step of forming mixture by mixing lithium material, vanadium material, and the hetero metal material according to LiaVbMcO2(in here, 0.5
Abstract:
The present invention relates to a precursor for a lithium secondary battery, to a cathode active material including the precursor, to a method for manufacturing the cathode active material, and to a lithium secondary battery including the cathode active material. More particularly, the precursor is plate-shaped and has a thickness of about 1 nm to about 30 nm, and is represented by following chemical formula 1: [Chemical formula 1] NixCoyMn1-x-y-zMz(OH)2. In chemical formula 1, 0
Abstract:
The present invention relates to a cathode active material for a lithium secondary battery, to a method for manufacturing same, and to a lithium secondary battery including same. The cathode active material for a lithium secondary battery includes: a lithium metal complex oxide core represented by the following chemical formula 1; and a coating layer disposed on the outer portion of the lithium metal complex oxide core and including a fluorine compound. [Chemical formula 1]: LiwNixCoyMn1-x-y-zMzO2, wherein, in chemical formula 1, 1.2
Abstract translation:本发明涉及锂二次电池用正极活性物质及其制造方法,以及涉及包含锂二次电池的锂二次电池。 锂二次电池用正极活性物质包括:由以下化学式1表示的锂金属复合氧化物核; 以及设置在锂金属复合氧化物芯的外部并包含氟化合物的涂层。 [化学式1]:LiwNixCoyMn1-xy-zMzO2,其中,在化学式1中,1.2 <= w <= 1.5,0
Abstract:
The present invention relates to a cathode active material for a lithium secondary battery, to a method for manufacturing same, and to a lithium secondary battery including same. The cathode active material for a lithium secondary battery includes: a lithium metal complex oxide core represented by the following chemical formula 1; and a coating layer disposed on the outer portion of the lithium metal complex oxide core and including a fluorine compound. [Chemical formula 1]: LiwNixCoyMn1-x-y-zMzO2, wherein, in chemical formula 1, 1.2