Dear customers,
We are glad to present to you our test report on the "PrismaticLithium Battery Charge Retention and Recovery Ability TestingStandard". As a leading laboratory in the field of technicalservices, we have conducted a comprehensive analysis of the productcomposition, testing items, and standards. In this report, we aimto provide a detailed description from various perspectives,exploring multiple angles and incorporating potential overlookeddetails and knowledge to guide your purchasing decision.
1. Product Composition Analysis:
The prismatic lithium battery under analysis is composed ofseveral key components, including:
- Electrodes: The battery consists of a positive electrode(cathode) and a negative electrode (anode), which are typicallymade of materials such as lithium cobalt oxide (LiCoO2) andgraphite, respectively. These electrodes play a crucial role in thebattery's overall performance.- Separator: Located between thepositive and negative electrodes, the separator prevents directcontact between them while allowing the passage of lithium ions. Itis commonly made of polyethylene or polypropylene.- Electrolyte:The electrolyte serves as a medium for lithium ions to migratebetween the electrodes through the separator. It usually comprisesa lithium salt dissolved in an organic solvent, such as a mixtureof lithium hexafluorophosphate (LiPF6) and ethylene carbonate(EC).- Housing: The prismatic lithium battery is enclosed within asturdy casing made of materials like aluminum or stainless steel,ensuring the safety and durability of the battery.2. TestingItems:To evaluate the charge retention and recovery ability of theprismatic lithium battery, we have conducted the following testingitems:- Initial Capacity Measurement: We measure the battery'sinitial capacity to establish a baseline for further evaluation.-Self-Discharge Test: The battery is stored under controlledconditions, and regular capacity measurements are taken over aspecific period to assess its self-discharge rate.- ChargeRetention Test: The battery is charged to its maximum capacity andthen placed in storage for an extended period. Subsequent capacitymeasurements are taken to determine the battery's ability to retainits charge.- Recovery Test: After the charge retention test, thebattery is discharged to a certain voltage and then recharged. Therecovery test evaluates how well the battery can recover itscapacity after being discharged.3. Standards:To ensure accurate andreliable testing, we follow the industry standards, which include:-GB/T 18287-2013: General specification for prismatic lithium-ionbatteries used in automobiles- IEC 62620: Secondary lithium-ioncells used in industrial applications- UN38.3: Recommendations onthe Transport of Dangerous Goods - Manual of Tests and CriteriaOurlaboratory strictly adheres to these standards to ensure thevalidity and comparability of the test results.In conclusion, thistest report provides a comprehensive analysis of the prismaticlithium battery's charge retention and recovery ability. By delvinginto the product composition, testing items, and standards, we aimto offer you a detailed and informative guide in choosing the rightbattery for your specific needs.Should you have any furtherin or require our professional assistance, please do nothesitate to contact us. Our team of technical engineers is ready toprovide you with the best solutions. Thank you for choosing ourservices.Best regards,深圳市讯科标准技术服务有限公司
