product specification tentative 1 (8) prepared document no. date rev lgcrp/btc ryu, duk hyun lrb-ps-cy240 2003-07-16 0 approved description lgcrp/btc kim, soo ryoung lithium ion icr18650 a3 p p r r o o d d u u c c t t s s p p e e c c i i f f i i c c a a t t i i o o n n rechargeable lithium ion battery model : icr18650 a3 2400mah revision history revision date originator reason for change 0 2004-07-16 ryu, duk hyun original release prepared reviewed approved ryu, duk hyun jung, jae han kim, soo ryoung date : ?04. 07. 16. date : ?03. 07. 16. date : ?04. 07. 16. 20 yoido-dong youngdungpo-gu, seoul 150-721, korea tel : (82) 2-3773-3599, 3659 fax : (82) 2-3773-7005 http://www.lgchem.com
product specification tentative 2 (8) prepared document no. date rev lgcrp/btc ryu, duk hyun lrb-ps-cy240 2003-07-16 0 approved description lgcrp/btc kim, soo ryoung lithium ion icr18650 a3 1. scope this product specification defines th e requirements of the rechargeab le lithium ion battery to be supplied to the customer by lg chem, ltd. should th ere be any additional in formation required by the customer, customers are advised to contact lg chem, ltd. before selecting a solution. 2. description and model 2.1 description : rechargeable lithium ion battery 2.2 model : icr18650 a3 3. technical information 3.1 capacity nominal : 2430 mah (by standard charge and discharge) minimum : 2380 mah 3.2 nominal voltage : average 3.7 v 3.3 standard charge : constant current and constant voltage (cc/cv) current = 1200 ma voltage = 4.2 v end current = 50 ma 3.4 max. charge current : 2400 ma 3.5 standard discharge : constant current (cc) current = 480 ma end voltage = 3.0 v 3.6 max. discharge current : 4800 ma (for continuous discharge) 3.7 weight : approx. 46.1 g 3.8 operating temperature charge : 0 to 45 o c discharge : -20 to 60 o c 3.9 storage temperature 1 month : -20 to 60 o c 3 months : -20 to 45 o c 1 year : -20 to 20 o c
product specification tentative 3 (8) prepared document no. date rev lgcrp/btc ryu, duk hyun lrb-ps-cy240 2003-07-16 0 approved description lgcrp/btc kim, soo ryoung lithium ion icr18650 a3 4. cell dimensions diameter : 18.3 0.1 mm ( max. 18.4 mm ) height : 64.9 0.2 mm ( max. 65.1 mm ) 5. appearances there shall be no such defects as deep scratch, crack, rust, discoloration or leakage, which may adversely affect the commercial value of the cell. 6. characteristics 6.1 standard charge unless otherwise specified, ?standard charge? shall consist of charging at constant current of 1200ma. the cell shall then be charged at consta nt voltage of 4.2v while tapering the charge current. charging shall be terminated when the charging current has tapered to 50ma. for test purposes, charging shall be performed at 23oc 2oc. 6.2 standard discharge ?standard discharge? shall consist of discharg ing at a constant curre nt of 480ma to 3.0v. discharging is to be performed at 23 oc 2 oc unless otherwise noted (s uch as capacity versus temperature). 6.3 initial capacity cells shall be charged per 6.1 and discharged per 6.2 within 1 hour after full charge. initial capacity shall meet the following requirement. initial capacity 2380 mah 6.4 cycle life cells shall be charged at constant current of 1200m a to 4.2v with end current of 50ma. cells shall be discharged at constant curren t of 1200ma to 3.0v. cells are to re st 10 minutes after charge and 20 minutes after discharge. a cycle is defined as one charge and one discharge. discharge capacity shall be measured per 6.1 and 6.2 after 300 cycles. discharge capacity (301th cycle) 80 % (of minimum capacity in 3.1)
product specification tentative 4 (8) prepared document no. date rev lgcrp/btc ryu, duk hyun lrb-ps-cy240 2003-07-16 0 approved description lgcrp/btc kim, soo ryoung lithium ion icr18650 a3 6.5 initial ac impedance initial ac impedance is measured at 1khz after standard charge. initial ac impedance 90 m ? (with ptc) 6.6 temperature dependency of capacity cells shall be charged per 6.1 at 23oc 2oc and discharged per 6.2 at the following temperatures. relative capacity at each temperature shall meet the following. 6.7 storage characteristics cells shall be charged per 6.1 and stored in a temp erature-controlled environment at 23oc 2oc for 30 days. after storage, cells shall be discharg ed per 6.2 to obtain the remaining capacity. remaining capacity 90 % (of minimum capacity in 3.1) 6.8 cell voltage (as of shipment) voltage range : 3.7 ~ 3.9 v 7. mechanical characteristics 7.1 drop test test method : cells charged per 6.1 are dropped ont o an wooden floor from 4 feet height for 3 cycles, where each cycle consists of 3 drops, 2 drops from each cell terminal and 1drop from the side of cell can (total num ber of drops = 9). after test, cells are discharged per 6.2 and cycled per 6.1 a nd 6.2 for 3 cycles to obtain recovered capacity. criteria : no leakage, capacity recovery rate 80 % 7.2 vibration test test method : cells charged per 6.1 are vibrated for 90 minutes pe r each of the three mutually perpendicular axis (x, y, z) with an amplitude of 0.8mm, frequency of 10hz to 55hz and sweep of 1hz change per minute. after test, cells are discharged per 6.2 and cycled per 6.1 and 6.2 for 3 cy cles to obtain recovered capacity. criteria : no leakage, capacity recovery rate 80 % charge temp. discharge temperature -10 o c 0 o c 23 o c 60 o c 23o c 70 % 90 % 100 % 95 %
product specification tentative 5 (8) prepared document no. date rev lgcrp/btc ryu, duk hyun lrb-ps-cy240 2003-07-16 0 approved description lgcrp/btc kim, soo ryoung lithium ion icr18650 a3 8. environmental test 8.1 high temperature storage test test method : cells are charged per 6.1 and stored in a temperature-controlled environment at 60oc for 1 week. after test, cells are di scharged per 6.2 and cycled per 6.4 for 3 cycles to obtain recovered capacity. criteria : no leakage, capacity recovery rate 80 % 8.2 high temperature and high humidity test test method : cells are charged per 6.1 and st ored at 60oc (95% rh) for 168 hours. after test, cells are discharged per 6.2 and cycled per 6.4 for 3 cycles to obtain recovered capacity. criteria : no leakage, no rust, capacity recovery rate 80 % 8.3 thermal shock test test method : 65oc (8hrs) 3hrs -20oc (8hrs) for 8 cycles with cells charged per 6.1. after test, cells are discharged per 6.2 a nd cycled per 6.4 for 3 cycles to obtain recovered capacity. criteria : no leakage, capacity recovery rate 80 % 9. safety test 9.1 abnormal charge test test method : cells are discharged per 6.2, then charged at constant current of 7200ma and constant voltage of 4.2v while tapering th e charge current. charging is continued for 48 hours (per ul1642). criteria : no rupture, no fire 9.2 external short-circuiting test test method : cells are charged per 6.1, and the positive and negative terminal is connected by a 100m ? -wire for 1 hour (per ul1642). criteria : no rupture, no fire 9.3 overdischarge test test method : cells are discharged at constant current of 480ma to 250% of the minimum capacity (per ul1642). criteria : no rupture, no fire
product specification tentative 6 (8) prepared document no. date rev lgcrp/btc ryu, duk hyun lrb-ps-cy240 2003-07-16 0 approved description lgcrp/btc kim, soo ryoung lithium ion icr18650 a3 9.4 nail test test method : a nail (diameter : 2.5~5mm) is pene trated vertically thro ugh the center of cells charged per 6.1 and left for 6 hours. criteria : no rupture, no fire 9.5 heating test test method : cells are charged per 6.1 and heated in a circulating air oven at a rate of 5oc per minute to 150oc. at 150oc, oven is to remain for 10 minutes before test is discontinued (per ul1642). criteria : no rupture, no fire 9.6 impact test test method : cells charged per 6.1 are impacted w ith their longitudinal axis parallel to the flat surface and perpendicular to the longitudinal axis of the 15.8mm diameter bar (per ul1642). criteria : no rupture, no fire 9.7 crush test test method : cells charged per 6.1 are crushed with thei r longitudinal axis pa rallel to the flat surface of the crushing apparatus (per ul1642). criteria : no rupture, no fire 10. standard test conditions unless otherwise specified, all test s stated in this product specifica tion are conducted at temperature 23 2oc and humidity 65 20 %rh. 11. product liability the coverage of lg chem, ltd. is for the cell itself, while the customer assumes the liability of the product including the cell a nd its protection circuit. 12. warranty as long as the cell is treated in accordance with this product specification and/or proper use and handling, lg chem, ltd. warrants that the cell should be free from any defect for a period of 1 year from date of manufacturing.
product specification tentative 7 (8) prepared document no. date rev lgcrp/btc ryu, duk hyun lrb-ps-cy240 2003-07-16 0 approved description lgcrp/btc kim, soo ryoung lithium ion icr18650 a3 the warranty set forth above or described in proper use and handling excludes a defect which is not related to manufacturing on the cell. 13. others any matter not included in this specification shall be conferred betw een the both parties. this document shall replace the document bearing a former revision index, and customers are kindly requested to destroy the former document in possession.
product specification tentative 8 (8) prepared document no. date rev lgcrp/btc ryu, duk hyun lrb-ps-cy240 2003-07-16 0 approved description lgcrp/btc kim, soo ryoung lithium ion icr18650 a3 fig 1. dimensional drawing of icr18650 a3
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