Lithium battery

Provided is a lithium battery where the reduction in output thereof is suppressed. The lithium battery comprises: a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; an electrolyte disposed between the positive ele...

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Bibliographische Detailangaben
Hauptverfasser:	KIM, RYOUNG HEE, DO, EUN CHEOL, PARK, SOO JIN, KANG, JIN KYU, LEE, HYUN CHUL, GWON, HYEOK JO, JI, SANG MIN, PARK, KI TAE
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	Provided is a lithium battery where the reduction in output thereof is suppressed. The lithium battery comprises: a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; an electrolyte disposed between the positive electrode and the negative electrode; and a separator impregnated with the electrolyte. The separator includes cellulose nanofibers. When measuring differential scanning calorimeter (DSC) of the separator impregnated with the electrolyte, an exothermic reaction peak expressed as a differential value (dH/dT) of a thermogram at the temperature ranging from 150 to 200 °C is free. 양극활물질을 포함하는 양극; 음극활물질을 포함하는 음극; 상기 양극과 음극 사이에 배치되는 전해질; 및 상기 전해질에 함침된 세퍼레이터를 포함하며, 상기 세퍼레이터가 셀룰로오스 나노섬유를 포함하며, 상기 전해질에 함침된 세퍼레이터의 DSC(differential Scanning Calorimeter) 측정 시에, 150℃ 내지 200℃ 범위의 온도에서, 서모그램(thermogram)의 미분값(dH/dT)으로 표시되는 발열 반응 피크(exothermic reaction peak)가 부재(free)인, 리튬전지가 제공된다.