Sony murata vtc5a 18650 2600mah 25a battery us18650vtc5a. When the lithium ion battery with nickel cathode material and graphite anode is used, such materials have a sloping discharge curve, so that the remaining capacity can be easily indicated like as hard carbon anode battery. In this quick video i hook up a battery to discharge through a constant load and log the discharge profile of both voltage and current. For more information on how panasonic can assist you with your battery power solution needs, visit us at. Graphite is a form of carbon that has longterm cycle stability and is used in lead pencils. Now if i have to make a discharge curve for it, how would i make one and.
A flat discharge curve simplifies the design of the application in which the battery is used since the supply voltage stays reasonably constant throughout the discharge cycle. This sony murata vtc5a cell is a superman type of cell for those that need and require ultrahigh discharge drain cells in the 18650 form factor size. Sonys original lithiumion battery used coke as the anode coal product. Since 1997, most li ion manufacturers, including sony, shifted to graphite to attain a flatter discharge curve. Pdf battery capacity and discharge current relationship. Sony 18650 liion battery test results ivan galysh gil dutchover jan 15, 2004 introduction three tests were conducted on the sony liion batteries. This sonymurata vtc6 cell is a compilation of near laughable riches, when talking about is phenomenal versatility and attributes. Lithium ion rechargeable batteries with lithium cobalt oxide cathodes and graphite anodes. The vtc4 is a sony 18650 battery with a whopping 30a discharge rate and reasonable 2100mah capacity. Lithiumbased batteries information battery university. Temperature dependence of discharge curves us18650vtc520deg. Lithium ion rechargeable battery technical information. Lithium ion rechargeable battery technical information kronium. Sony code 49928190 sony energy devices corporation device solutions business group sony corporation lithium ion rechargeable battery technical information revision 0.
The second test was to determine the affects of over discharging a cell. Using triedandtrue lithiumion cell technology, the sony vtc4 battery is ideal for powering highdrain electronics. Sony vtc4 battery 18650 30a drain liion rechargeable. Sony s original lithiumion battery used coke as the anode coal product. Battery performance characteristics how to specify and. Lithium ion rechargeable batteries technical handbook. The sony vtc3 is a lithiumion cell intended for use in high current 18650. Please include any necessary items in the operation manual of load equipment. These do not protect the cell from being overcharged and over discharged. These do not protect the cell from being overcharged and overdischarged. Sony code 49922780 sony energy devices corporation device solutions business group sony corporation lithium ion rechargeable battery technical information revision 0.
The relationship is known and widely used to this day. One test was to determine the affects of overcharging a cell. Sony vtc3 18650 high drain 1600mah 30a battery us18650vtc3. The key to the superior specific energy is the high cell voltage of. Peukerts equation describes the relationship between battery capacity and discharge current for lead acid batteries. Do not use ordinary constant current and constant voltage cccv power supplies. The voltage drops faster for high discharge currents. How to charge lithium ion 18650 battery with just a smart phone charger duration. The third test was to determine if the cell can survive a short. Temperature dependence of discharge curves us18650vtc4 0 200 400 600 800 1200 1400 1600 1800 2000 2200. The sony vtc5a 18650 lithium ion battery is the ultimate cell which all other 18650s are compared to. This cell offers a 2600mah capacity rating and 25a cdr. Remaining capacity can easily be indicated using the discharge curve. I am trying to make a discharge curve for one of my batteries that i have.
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