LITHIUM SECONDARY BATTERIES WITH CUTOFF VOLTAGE MORE THAN 4,35 V

LITHIUM SECONDARY BATTERIES WITH CUTOFF VOLTAGE MORE THAN 4,35 V

FIELD: electrical engineering; lithium batteries. ^ SUBSTANCE: lithium secondary battery includes cathode (C), anode (A), separator and electrolyte. Bulk ratio (A/C) of anodic active material (A) to cathodic active material (C) per unit area of each electrode is in the range from 0.44 to 0.70 and de...

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Hauptverfasser: KIM DONG-MIUNG, KIM JONG-DZEONG, DZEONG DAE-DZUNE, CHO BENDZHAMIN, DZEONG DZUN-JONG, BAE DZOON-SUNG, JOON DZONG-MOON
Format: Patent
Sprache:eng ; rus
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:FIELD: electrical engineering; lithium batteries. ^ SUBSTANCE: lithium secondary battery includes cathode (C), anode (A), separator and electrolyte. Bulk ratio (A/C) of anodic active material (A) to cathodic active material (C) per unit area of each electrode is in the range from 0.44 to 0.70 and demonstrates limit charge voltage between 4.35 V and 4.6 V. Particles diameter of cathodic material is between 5 mcm and 30 mcm. High-voltage lithium secondary battery meets of capacity balance requirement due to adjustment of bulk ratio (A/C) of anodic active material (A) to cathodic active material (C) per unit area of each electrode. ^ EFFECT: increased full capacity and mean voltage of battery discharge, improved battery safety in recharge, long durability. ^ 11 cl, 11 dwg, 2 tbl, 13 ex