前言：Dear customers,We are glad to present to you our test report on the "Prismatic Lithium Battery Charge Retention and Reco
Dear customers,
We are glad to present to you our test report on the "Prismatic Lithium Battery Charge Retention and Recovery Ability Testing Standard". As a leading laboratory in the field of technical services, we have conducted a comprehensive analysis of the product composition, testing items, and standards. In this report, we aim to provide a detailed description from various perspectives, exploring multiple angles and incorporating potential overlooked details and knowledge to guide your purchasing decision.
1. Product Composition Analysis:
The prismatic lithium battery under analysis is composed of several key components, including:
- Electrodes: The battery consists of a positive electrode (cathode) and a negative electrode (anode), which are typically made of materials such as lithium cobalt oxide (LiCoO2) and graphite, respectively. These electrodes play a crucial role in the battery's overall performance.- Separator: Located between the positive and negative electrodes, the separator prevents direct contact between them while allowing the passage of lithium ions. It is commonly made of polyethylene or polypropylene.- Electrolyte: The electrolyte serves as a medium for lithium ions to migrate between the electrodes through the separator. It usually comprises a lithium salt dissolved in an organic solvent, such as a mixture of lithium hexafluorophosphate (LiPF6) and ethylene carbonate (EC).- Housing: The prismatic lithium battery is enclosed within a sturdy casing made of materials like aluminum or stainless steel, ensuring the safety and durability of the battery.2. Testing Items:To evaluate the charge retention and recovery ability of the prismatic lithium battery, we have conducted the following testing items:- Initial Capacity Measurement: We measure the battery's initial capacity to establish a baseline for further evaluation.- Self-Discharge Test: The battery is stored under controlled conditions, and regular capacity measurements are taken over a specific period to assess its self-discharge rate.- Charge Retention Test: The battery is charged to its maximum capacity and then placed in storage for an extended period. Subsequent capacity measurements are taken to determine the battery's ability to retain its charge.- Recovery Test: After the charge retention test, the battery is discharged to a certain voltage and then recharged. The recovery test evaluates how well the battery can recover its capacity after being discharged.3. Standards:To ensure accurate and reliable testing, we follow the industry standards, which include:- GB/T 18287-2013: General specification for prismatic lithium-ion batteries used in automobiles- IEC 62620: Secondary lithium-ion cells used in industrial applications- UN38.3: Recommendations on the Transport of Dangerous Goods - Manual of Tests and CriteriaOur laboratory strictly adheres to these standards to ensure the validity and comparability of the test results.In conclusion, this test report provides a comprehensive analysis of the prismatic lithium battery's charge retention and recovery ability. By delving into the product composition, testing items, and standards, we aim to offer you a detailed and informative guide in choosing the right battery for your specific needs.Should you have any further inquiries or require our professional assistance, please do not hesitate to contact us. Our team of technical engineers is ready to provide you with the best solutions. Thank you for choosing our services.Best regards,深圳市讯科标准技术服务有限公司
