lg chem, ltd. / research park, battery tech center june-13-2003 no. 1 tentative 2003-06-13 date technical information of icr18650 a2 (2350mah) description lrb-ti-icy240a2-030613 document no confidential prepared approved lgcrp/brd/btc/bc jung, jae han lgcrp/brd/btc/bc yun, in taeg technical information technical information of icr18650 a2 (2350mah) of icr18650 a2 (2350mah) date : ?03. 06. 13 date : ?03. 06. 13 jung, jae han yun, in taeg approved prepared 20 yoido-dong youngdungpo-gu, seoul 150-721, korea tel : (82) 2-3773-3599, 3659 fax : (82) 2-3773-7005 http://www.lgchem.com
lg chem, ltd. / research park, battery tech center june-13-2003 no. 2 tentative model icr18650 a2 model icr18650 a2 2300 mah average 0.5c capacity 46.5 grams weight (typical) 3.7 v nominal voltage ?a 80 mohm internal impedance ?? 80% of initial capacity at 300 cycles cycle performance ** max. 65.1 mm max. 18.4 mm 2300 mah 2350 mah diameter dimensions minimum height nominal 0.2c capacity * * charge : 1150ma, 4.2v, 50ma end-current (cc-cv) discharge : 460mah, 3.0v cut-off * * 0.5c-0.5c cycling 1 general information
lg chem, ltd. / research park, battery tech center june-13-2003 no. 3 tentative 2 discharge capacities 0 460 920 1380 1840 2300 2760 2.5 3.0 3.5 4.0 4.5 0.2c capacity = 2325mah 0.5c capacity = 2305mah 1.0c capacity = 2235mah charge : constant-current/constant-voltage charge ( cc/cv ) 1150ma, 4.2v, 5h, end-current=50ma, 23 o c discharge : constant-current discharge ( cc ) 460ma(0.2c) / 1150ma(0.5c) / 2300ma(1.0c) , 3.0v cut-off, 23 o c cell voltage ( v ) discharge capacity ( mah )
lg chem, ltd. / research park, battery tech center june-13-2003 no. 4 tentative 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 charge : 4.2v, end-current=50ma, 23 o c discharge : 460ma, 3.0v cut-off, 23 o c 0.5c-rate(1150ma) 1.0c-rate(2300ma) 1.5c-rate(3450ma) cell voltage ( v ) charge time ( h ) 0 1150 2300 3450 4600 5750 6900 8050 charge current ( ma ) 3 charge characteristics
lg chem, ltd. / research park, battery tech center june-13-2003 no. 5 tentative 4 discharge characteristics (1) % mah 90.2 2100 1.5c 96.1 2235 1.0c 99.1 2305 0.5c 88.9 2060 2.0c 100 2325 0.2c capacity 2275 2325 2080 1840 1605 mah 0.2c discharge capacity 97.8 100 89.5 79.1 69.0 % 2270 2305 1870 1395 775 mah 0.5c 97.6 99.1 80.4 60.0 33.3 % 1.0c 97.4 96.1 68.0 0.4 0.2 % mah 2265 2235 1580 10 5 60 o c 23 o c 0 o c -10 o c -20 o c discharge characteristics discharge temperature characteristics * all ratio?s are calculated vs. 0.2c discharge capacity at 23 o c.
lg chem, ltd. / research park, battery tech center june-13-2003 no. 6 tentative 0 230 460 690 920 1150 1380 1610 1840 2070 2300 2530 2.5 3.0 3.5 4.0 4.5 charge = 1150ma, 4.2v, 5h, end-current=50ma, 23 o c discharge = 3.0v cut-off, 23 o c 0.2c-rate(460ma) 0.5c-rate(1150ma) 1.0c-rate(2300ma) 1.5c-rate(3450ma) 2.0c-rate(4600ma) cell voltage ( v ) discharge capacity ( mah ) 4 discharge characteristics (2)
lg chem, ltd. / research park, battery tech center june-13-2003 no. 7 tentative 0.2 0.4 0.6 0.8 1 2 4 0 460 920 1380 1840 2300 2760 0 20 40 60 80 100 120 capacity ratio ( % vs. 2300mah ) charge : 1150ma, 4.2v, 5h, end-current=50ma, 23 o c discharge : 3.0v cut-off, 23 o c discharge capacity ( mah ) discharge c-rate 4 discharge characteristics (3)
lg chem, ltd. / research park, battery tech center june-13-2003 no. 8 tentative 4 discharge characteristics (4) -30 -20 -10 0 10 20 30 40 50 60 0 460 920 1380 1840 2300 2760 0 20 40 60 80 100 120 charge 1150ma, 4.2v, 5h, end-current=50ma, 23 o c discharge 3.0v cut-off 1.0c discharge 0.5c discharge 0.2c discharge capacity ratio ( % vs. 2300mah ) discharge capacity ( mah ) discharge temperature ( o c )
lg chem, ltd. / research park, battery tech center june-13-2003 no. 9 tentative 5 cycle life 0 50 100 150 200 250 300 0 460 920 1380 1840 2300 2760 0 20 40 60 80 100 120 capacity ratio ( % vs. 2300mah ) charge : constant-current/constant-voltage charge ( cc/cv ) 1150ma, 4.2v, 5h, end-current=50ma, 23 o c / 45 o c discharge : constant-current discharge ( cc ) 1150ma, 3.0v cut-off, 23 o c / 45 o c discharge capacity ( mah ) cycle number ( n )
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