ELECTROLYTE ADDITIVE, ELECTROLYTE FOR BATTERIES INCLUDING ELECTROLYTE ADDITIVE, AND SECONDARY BATTERY INCLUDING ELECTROLYTE

• Main Authors: KANG, Wan Chul, HAN, Ji Seong, CHOI, Ji Young, KIM, Min Goo, YUN, Jong Chul, LIM, Hyeong Kyu, JANG, Min Jung, LEE, Sang Ho
• Format: Patent
• Language: English
• Published: 08.06.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention relates to an electrolyte additive including a compound containing a substituent represented by Chemical Formula 1, an electrolyte including the electrolyte additive, and a secondary battery including the electrolyte. Chemical Formula 1:In Chemical Formula 1, P and O are phosphorus and oxygen, respectively; A is a bond or oxygen; Q is oxygen or an unshared electron pair; R1, R2, R3, and R4 are each independently hydrogen, a linear or branched alkyl group having 1 to 10 carbon atoms, an alkenyl group, an alkynyl group, an alkoxy group, an alkoxycarbonyl group, an alkoxyalkyl group, a fluoroalkyl, or a cyclic sulfate; optionally, R1 or R2 is connected to R3 or R4 to form a double bond or a ring; n is an integer from 0 to 3; and * is a binding position.