-EVE PowerCO,LTD Confidential Proprietary-
Term Definition
Product: Refers to the LF280K rechargeable lithium-ion cell with prismatic alu min-um shell
manufactured by EVE Power Co.,Ltd.(hereinafter referred to as EVE)in this specification.
Customer: Refers to the buyer in the product sales contract signed with EVE.
Environment temperature: The ambient temperature where the cell is located.
Cell temperature: The temperature measured by temperature sensor installed at the center of cell
surface.The selection of temperature sensor and measuring line shall be jointly agreed by EVE and the
customer.
Fresh cell:Refers to cell within 7 days after production.
Power: The ratio of the charge/discharge power to the cell energy value measured multiple times by
the battery system, denoted by P.For example,when the cell energy is 896Wh and the
charge/discharge power is 448 W,the charge/discharge power is 0.5P;When the cell energy
decays to 716.8Wh and the charge/discharge power is 358.4W,the charge/discharge ratio is
0.5P.
State of charge:Under unloaded conditions,the ratio of the cell capacity state to the nominal
capacity measured in ampere-hour or watt-hour.The abbreviation is expressed by SOC.For
example,if the capacity at 280 Ah is 100%SOC,then the capacity at 0 Ah is 0%SOC.
State of health:The ratio of actual cell capacity to nominal capacity,abbreviated as SOH.For
example,if the cell capacity at 280 Ah is 100%SOH,when the cell capacity decays to 224 Ah,it's
80%SOH.
Cycle:A cycle means the cell being charged and discharged once according to the charging and
discharging standards. The cell shall be charged and discharged once according to the specified
charging and discharging standards as a cycle.The cycle includes short-term normal charging or a
combination of regenerative charging and discharging processes.In the charging process,sometimes
there is only normal charging and no regenerative charging.The discharge can be formed by combining
some partial discharges.
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