Misen P70A 3.7V 70Ah High Energy Density 3C Lithium-Ion Pouch Cell

     High-energy lithium-ion pouch cell: Designed with a large-format pouch structure to provide high energy density, stable electrical performance, and efficient space utilization for electric vehicles, AGVs, electric motorcycles, and energy storage systems.                

     Large-format 70Ah-class capacity: Delivers a standard capacity of at least 68.7Ah at 0.33C and at least 67.8Ah at 0.5C. The high single-cell capacity helps reduce the number of parallel cells required and simplifies module and pack-level electrical architecture.                

     High energy density performance: Achieves a gravimetric energy density of at least 270Wh/kg and a volumetric energy density of 585.8Wh/L under specified test conditions, supporting compact, lightweight, and high-energy battery system designs.                

     3C continuous discharge capability: Supports a maximum continuous discharge rate of 3C at 25°C. Low internal resistance, including AC resistance of no more than 1.2mΩ and DC resistance of no more than 3.0mΩ, enables dependable current delivery and controlled thermal performance.                

     Wide operating temperature range: Supports charging from -15°C to 55°C and discharging from -30°C to 60°C. Short-term storage is supported from -20°C to 40°C at approximately 50% SOC, making the P70A suitable for a wide range of operating environments.                

     Long cycle life under specified conditions: Delivers at least 2,000 cycles to 80% state of health at 25°C under the specified step-charging and cycling conditions, supporting reliable long-term operation in traction and stationary energy storage applications.                

     The following specifications are provided for engineering evaluation and reference. For mass production projects, final values, tolerances, operating limits, and batch consistency requirements should be confirmed according to the latest product datasheet and batch test records.                

     Notes: Capacity, energy density, internal resistance, cycle life, and operating limits are based on defined test conditions. Battery module and pack designers should confirm the applicable charge and discharge limits, temperature-dependent voltage range, preload requirements, thermal management, and BMS settings before system integration.                

     This cell adopts a laminated lithium-ion pouch cell structure designed for high-energy battery modules and pack-level integration. The large-format pouch design supports efficient use of installation space, flexible mechanical layouts, and adaptable thermal management, making it suitable for electric vehicles, electric motorcycles, AGVs, energy storage systems, and customized lithium battery packs.                

     When assembled into a battery module, the cells require an initial preload of 400–500N, and long-term operation without mechanical restraint is prohibited. The module structure should distribute pressure evenly, provide adequate electrical insulation, and allow for the specified 6% cell swelling coefficient. Proper mechanical support helps maintain reliable electrical contact and consistent cell performance throughout the service life of the battery system.                

     Below is a mechanical summary of the current P70A cell configuration for preliminary integration review. The specified cell length excludes the electrode tabs, while thickness is measured under a compression force of 500 ±50N after five seconds. Detailed cell and tab drawings should be confirmed before finalizing module fixtures, busbars, insulation components, and enclosure dimensions.                

     Integration checklist (recommended): Please confirm the available module space, cell orientation, 400–500N preload method, swelling allowance, cooling strategy, insulation structure, busbar or flexible connector design, BMS settings, and target continuous current. Based on this information, we can provide module design guidance and a customized battery system integration proposal.                

     The Misen P70A high-energy lithium-ion pouch cell (3.7V 70Ah) is suitable for applications requiring high energy density, dependable current output, and stable long-term performance. Its 70Ah-class capacity, gravimetric energy density of at least 270Wh/kg, maximum continuous discharge rate of 3C, and cycle life of at least 2,000 cycles make it suitable for high-energy traction, mobility, and energy storage battery systems.