IRON OXYHYDROXYNITRATE HAVING PHOSPHORIC ACID ANION-ADSORBED SURFACE, PREPARATION METHOD THEREFOR, CATHODE COMPRISING IRON OXYHYDROXYNITRATE HAVING PHOSPHORIC ACID ANION-ADSORBED SURFACE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

• Main Authors: AHN, Jihoon, KIM, Yun Kyoung, KIM, Taek Gyoung, HAN, Suenghoon, PARK, Eun Kyoung
• Format: Patent
• Language: English; French; Korean
• Published: 18.02.2021
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention relates to an iron oxyhydroxynitrate having a phosphoric acid anion-adsorbed surface, a preparation method therefor, a cathode for a lithium secondary battery, the cathode comprising as a cathode additive the iron oxyhydroxynitrate having a phosphoric acid anion-adsorbed surface, and a lithium secondary battery comprising the cathode. La présente invention concerne un oxyhydroxynitrate de fer ayant une surface adsorbée par anion d'acide phosphorique, son procédé de préparation, une cathode pour une pile secondaire au lithium, la cathode comprenant comme additif de cathode de l'oxyhydroxynitrate de fer ayant une surface adsorbée par anion d'acide phosphorique et une pile secondaire au lithium comprenant la cathode. 본 발명은 표면에 인산 음이온이 흡착된 옥시수산화질산철, 이의 제조방법, 상기 표면에 인산 음이온이 흡착된 옥시수산화질산철을 양극 첨가제로 포함하는 리튬 이차전지용 양극 및 이를 포함하는 리튬 이차전지에 관한 것이다.