Secondary battery, and battery module and apparatus including same

Secondary battery, and battery module and apparatus including same

According to one embodiment of the present invention, there may be provided a secondary battery, a battery module comprising the secondary battery as a unit battery, and an apparatus comprising the battery module as a power source, the secondary battery comprising an electrode assembly, the electrod...

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Hauptverfasser: JUNG DA-BIN, KIM HYO-MI, JANG HWAN-HO, HAN JUN-HEE, KIM MOON-SUNG, RYU SANG BAEK, YOUK SEUNG-HYUN, NOH MI JUNG, PARK DA HYE
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Sprache:chi ; eng
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator JUNG DA-BIN
KIM HYO-MI
JANG HWAN-HO
HAN JUN-HEE
KIM MOON-SUNG
RYU SANG BAEK
YOUK SEUNG-HYUN
NOH MI JUNG
PARK DA HYE
description According to one embodiment of the present invention, there may be provided a secondary battery, a battery module comprising the secondary battery as a unit battery, and an apparatus comprising the battery module as a power source, the secondary battery comprising an electrode assembly, the electrode assembly has a first electrode group including a first positive electrode containing a first positive electrode active material, and a second electrode group including a second positive electrode containing a first positive electrode active material and a second positive electrode active material. The first positive electrode active material is a lithium-nickel composite oxide having primary particles having a particle diameter of 1 [mu] m or less, and the second positive electrode active material is a lithium-nickel composite oxide having primary particles having a particle diameter of more than 1 [mu] m. According to the present invention, the high-temperature storage performance and the fast charging performan
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title Secondary battery, and battery module and apparatus including same
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