EVE LF280K Manual

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-EVE PowerCO.,LTD Confidential Proprietary-

Version

Model

LF280K

Specification No

PBRI-LF280K-D06-01

Product Specification

Prismatic LFP Cell

Model:LF280K

：LF280K

Product Design

Quality

Sales

Drafted by

Approved

Checked by

Customer Recipient

Company Name

Approved by

：

Date

：

June 2023

EVE Power Co.,Ltd.

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Summary of Contents for EVE LF280K

Page 1 -EVE PowerCO.,LTD Confidential Proprietary- Version Model LF280K Specification No PBRI-LF280K-D06-01 Product Specification Prismatic LFP Cell Model:LF280K ：LF280K Product Design Quality Sales Drafted by Approved Checked by Checked by Checked by Customer Recipient Company Name Approved by ： Date ： June 2023...
Page 2 Customers shall communicate and reach an agreement with EVE Power Co.,Ltd.regarding special requirements beyond the product specifications.If certain applications and operation conditions are out of the description of this specification,EVE may design and manufacture products according to customer's special requirements.
Page 3 GB/T 36276-2018 Yong 2023.2.10 2、Added the English version Zhang 3、Updated the specification number according to the newest coding rules Adjusted chapter content according to the latest EVE specification Hongbo 2023.6.6 template EVE，...
Page 4: Table Of Contents
Mode] Specification No Version LF280K PBRI-LF280K-D06-01 Contents CUSTOMER REQUIREMENTS REVISION HISTORY ..............................! TERM DEFINTION ...............................v 1 FUNDAMENTALINFORMATION ..........................1- 1.1 Scope of Application ............................1- Product Type ..............................1- 1.3 Product Model ..............................1- 2 CELSPECIFICATIONSANDPARAMETERS ......................1- 2.1 Basic Specifications and Parameters ........................1- 2.2 Electrical Performance Parameters ........................
Page 5 5.5 Confidentiality agreement ........................29- Risk Warning ............................29- Disclaimer ............................... 30- 6 OTHERS ................................30- 6.1 Right and Obligations of EVE EVE......................30- Right and Obligations of Customer ......................31- 6.3 Language Conflict clause ..........................31- CONTACTNFORMATION ..........................31- APPENDIX:CEL DRAWING OFLF280K ：LF280K ..................33-...
Page 6: Term Defintion
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.
Page 7 -EVE Power CO.,LTD Confidential Proprietary- Model Version Specification No LF280K PBRI-LF280K-D06-01 Charge Calibration:The charging mode described in 3.8 of this specification. Discharge Calibration:The discharging mode described in 3.9 of this specification. Open circuit voltage:The voltage of the cell measured when unloaded or circuit is disconnected.The...
Page 8 -EVE PowerCO,LTD Confidential Proprietary- Model Specification No Version LF280K PBRI-LF280K-D06-01 Units of measurement: Refer to following table Table 1 Units of measurement Type of units Units Abbreviation Voltage Volt Ampere Current Ampere-Hour Capacity Energy Watt-Hour Resistance Ω Milliohm Resistance mΩ...
Page 9: Fundamentalinformation
LF280K PBRI-LF280K-D06-01 1 Fundamental Information 1.1 Scope of Application This document describes the specification of the LF280K lithium-ion cell manufactured by EVE Power Co.,Ltd. EVELF280K 1.2 Product Type Prismatic lithium-ion cell with aluminum shell 1.3 Product Model:LF280K 2 Cell Specifications and Parameters 2.1 Basic Specifications and Parameters...
Page 10: Electricalperformanceparameters
-EVE Power CO.,LTD Confidential Proprietary- Model Specification Version LF280K PBRI-LF280K-D06-01 AC,1 kHz,Delivery SOC Initial Internal Resistance ≤0.25 mΩ Fresh cell 25℃,50%SOC,1C,10s, Direct Current Resistance ≤1.5 mΩ (DCR) Fresh cell Weight 5490 g±300 g With Terminal Height1 207.2±0.5 mm 1(H1) Height2 (H2) Without Terminal 204.6±0.5 mm...
Page 11: Safety Performance Parameters
-EVE Power CO,LTD Confidential Proprietary- Version Model Specification No. LF280K PBRI-LF280K-D06-01 E₃*/E₃ ≥87% E₂⁴≥95%*E₁* Energy efficiency Discharging energy Items High/Low Temperature Temp Charge/Discharge 3.12 Performance E4*/E₄ ≥93% 45℃ E4⁴ ≥98%*Eo* Es*/Es≥76% 5℃ Es⁴ ≥80%*Eo* Discharging energy Discharging energy retention Items...
Page 12: Cell Drawing
-EVE Power CO.,LTD Confidential Proprietary- Model Version Specification No. LF280K PBRI-LF280K-D06-01 2.4 Cell Drawing See Appendix 2.5 Appearance The cell shall not have any defects that may affect their commercial values,including obvious scratches,cracks,rust stains,discoloration,or electrolyte leakage. 3 Test Conditions and Methods 3.1 Environmental Conditions...
Page 13 -EVE PowerCO,LTD Confjidential Proprietary- Model Specification No. Version LF280K PBRI-LF280K-D06-01 Fig.1 Diagram of the clamp Fig.2 Diagram of the clamp covered with insulation film 2 Place the cell (15%~40%SOC)which is covered with blue film(material:PET,thickness:0.1 mm)and top film (material:PC,thickness:0.3 mm)in the middle of the splint,fix the clamp with 6 M8 bolts to ensure that the initial compression force on the cell is 300 kgf±20 kgf,.Then use a...
Page 14: Dimensions
-EVE PowerCO,LTD Confidential Proprietary- Model Specification No. Version LF280K PBRI-LF280K-D06-01 Fig.5 Diagram of cell with s welling force clamp 3.4 Dimensions Test instrument:Automatic wrapping machine; Test method:Use the wrapping machine to measure the length,width and height of the cell.And apply a 300 kgf±20 kgf force on it.
Page 15: Pretreatment
-EVE PowerCO,LTD Confidential Proprietary- Specification No Version Model LF280K PBRI-LF280K-D06-01 3.7 Pretreatment Before the formal test,pretreat the cell to ensure it is activated and stable.The steps are as follows: a.Charge the cell according to the standard charging mode; b.Discharge the cell according to the standard discharging mode;...
Page 16: Rate Discharge Performance
-EVE Power CO,LTD Confidential Proprietary- Model Specification No Version LF280K PBRI-LF280K-D06-01 3.11 Rate Discharge Performance Discharge the cell according to (3.9)at the ambient temperature of 25°C ±2°C; Charge the cell to 3.65 V at a constant power of 448 W and rest for 30 min,note as E1*;...
Page 17: Capacity Retention And Capacity Recovery
-EVE PowerCO,LTD Confidential Proprietary- Model Specification No Version LF280K PBRI-LF280K-D06-01 3.12.2 5℃ Charge-discharge Performance Discharge the cell according to (3.9)at the ambient temperature of 25°C ±2℃; Rest the cell for 5 h at the ambient temperature of 5°C ±2℃; Charge to 3.65 V at a constant powerof448 Wand then rest for 30 min,note the energy as Es;...
Page 18: Cycle Life
-EVE PowerCO.,LTD Confidential Proprietary- Specification No Version Model LF280K PBRI-LF280K-D06-01 Store the cell for 28 days at 25°C±2°C and rest for 5 h at 25°C ±2℃; Discharge to 2.5 V at a constant power of 448W and rest for 30 min;...
Page 19 -EVE Power CO,LTD Confidential Proprietary- Version Model Specification No LF280K PBRI-LF280K-D06-01 Charge the cell to 3.65 V at a constant power of 0.5P,rest for 30 min;Discharge to 2.5 V at a constant power of 0.5P,rest for 30 min;Charge the cell to 3.65 V at a constant powerof0.5P,restfor 30 min;Discharge to 2.5 V at a constant power of 0.5P,record the discharge capacity Ci.rest for...
Page 20: Swelling Force Test
-EVE Power CO,LTD Confidential Proprietary- Model Specification No Version LF280K PBRI-LF280K-D06-0 3.16 Swelling Force Test Prepare and install the clamp according to 3.3.2.before the test. Cycle according to (3.15.1)and record cell swelling force and discharge capacity retention rate during test process. (3.15.1) 3.17 Safety Performance...
Page 21: Lf280K Pbri-Lf280K-D06-01
-EVE Power CO,LTD Confidential Proprietary- Model Specification No Versio LF280K PBRI-LF280K-D06-01 c) Crush speed:(5±1)mm/s; d) Crush degree:stop crushing when the voltage reaches 0V or the deformation reaches 30%or the crushing force reaches (13000±780)N;keep it for 10 minutes. Observe it for lh. (Refer to GB/T 36276-2018 Lithium ion battery for electrical energy storage) Fig.6 Diagram of the Extrusion Device...
Page 22 -EVE Power CO,LTD Confidential Proprietary- Model Specification No Version LF280K PBRI-LF280K-D06-01 3.17.8 Thermal Runaway Test (1)At the ambient temperature of 25°C±2℃,charge the cell according to(3.8),and then install the test clamp according to (3.3.1) (2)Use a flat or rod-shaped heating device,and its surface should be covered with ceramic,metal or insulating layer.The heating power of the heating device should be in the range of...
Page 23: Welding Parameters Recommendation
Poles 4.2 Charge and Discharge Parameters The following data is the reference performance data of LF280K Cell during BMS design.Actual use is subject to the using mode and conditions agreed by both parties. 4.2.1 Charging Mode Table 8 Charging mode parameters table —17—...
Page 24 -EVE Power CO,LTD Confidential Proprietary- Version Model Specification LF280K PBRI-LF280K-D06-01 Specifications Parameters Conditions Standard charging 0.5P 25°C±2℃ power Maximum continuous 25°℃±2℃ charging power Single cell≤3.65V Standard charging voltage ≤3.65V Charge to 3.65V with a constant power of 448W Standard charging mode 448W3.65V...
Page 25 -EVE Power CO.,LTD Confidential Proprietary- Table 9 Continuous charging modes (unit:P-Rate) Version Specification No Model LF280K PBRI-LF280K-D06-01 Cell temperature /℃ /℃ Max charging 0%~10 0.03 0.12 0.25 power (P) 4.2.2.2 Staged constant power charging modes Table 10 Staged constant power charging modes (unit:P-Rate) Cell temperature 1℃...
Page 26 Table 11 Discharging mode parameter table Conditions Product Parameters specifications Standard discharging 0.5P 25°℃±2℃ power Maximum continuous 25°℃±2℃ discharging power Discharge to 2.5V with a constant power of 448W Standard discharge mode 448W2.5V Temperature T>0℃ Discharge cut-off 2.5 V voltage Temperature T≤0℃...
Page 27: Safety Limits
EVE is not responsible for product quality assurance if no complete monitoring data of the battery system during its service life is provided.
Page 28 -EVE Power CO.,LTD Confidential Proprietary · Model Specification No. Version LF280K PBRI-LF280K-D06-01 4.3.2 Voltage Limits Table 13 Safety limit voltage parameters Protective Actions Categories Items Parameters When the cell voltage reaches 3.65 V Charging 3.65 V stop charging Ends BMS alarms Third 3.7 V...
Page 29 EVE shall not be responsible for any cell quality issues caused by exceeding the protection voltage. b)If the cell discharging v oltage reaches the cut-off voltage,it is necessary to charge as soon as possible to prevent the battery from being over-discharged.EVE shall not be responsible for any cell quality...
Page 30 Notes : a)Prohibit charging the cell at low temperatures (lower than 0℃)and the minimum safety temperature specified by this specification,otherwise EVE will not be responsible for any quality assurance liability. b)The heat dissipation design of pack may effect cell electrical performances,EVE will not be responsible for any liability regarding cell quality issues caused by the heat dissipation design.
Page 31: Parameters Recommendation For Module Design
LF280K PBRI-LF280K-D06-01 4.4 Parameters Recommendation for Module Design 4.4.1 Cell Directions Fig.8 Diagram of LF280K cell direction 8LF280K 4.4.2 Cell Compression Force When forming modules,a compression force in the direction of vertical thickness is applied to the cells in order to make them better arranged and fixed.If the compression force is too large,the cells may be damaged or even leak.Cell compression force test conditions are as follows:...
Page 32: Thermodynamic Parameters
-EVE Power CO,,LTD Confidential Proprietary- Model Specification No Versio LF280K PBRI-LF280K-D06-01 4.4.3 Cell Swelling Force The inherent characteristics such as the rebound of the electrode thickness may lead to cell expansion during use which generates force on the clamp.,and the force increases with the attenuation of the cell capacity.The cell swelling force at BOL and EOL(60%SOH)is shown...
Page 33: Precautions
EVE.When the internal resistance of the cell in use exceeds 150% of the initial internal resistance,or the capacity is less than 60%of nominal capacity,the cell should not to be used any more.Violation of this requirement will exempt EVE from its responsibility for...
Page 34: Operation Precautions
-EVE Power CO,LTD Confidential Proprietary- Model Version Specification No. LF280K PBRI-LF280K-D06-01 ● While handling, lift trucks or special tools shall be used to load and unload products; Handel with care, Do not throw or squeeze,which may cause cell damage or personal injury.It is strictly prohibited to put cells together with corrosive substances such as...
Page 35 ● If the cell emits peculiar smell,heat,discoloration,deformation,or any abnormality during use,storage,or charging,immediately remove the cell from the device or charger and stop using it. ● It is prohibited to disassemble the product without the written consent of EVE. —28—...
Page 36: Confidentiality Agreement
5.5 Confidentiality agreement The customer shall keep the cooperation content highly confidential.Without the permission of EVE,the customer shall not disclose any content of the technical agreement to a third party.Otherwise,the customer will be held responsible according to relevant laws. 5.6 Risk Waring 5.6.1 Warning Declaration...
Page 37: Disclaimer
● Customer has the obligation to notify EVE's personnel to be present and be informed of the actual situation when products of EVE operate abnormally. —30—...
Page 38: Language Conflict Clause
6.3 Language Conflict Clause ● This specification is written in both Chinese and English.In case of any conflict between the Chinese and English agreements,the Chinese version shall prevail. Appendix:Cell Drawing of LF280K ：LF280K 71.7±0.8 30%-40%60C Fig.9 Diagram of cell size and appearance...