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      汽车动力系统

      EV Battery System

      概述 Overview

      振华新能源为了满足客户端不同运行工况条件下汽车动力系统需求,提供一套基于三元18650电芯的通用解决方案,该方案采用标准化的本征安全型模块,并具有高能量密度的明显优势。

      To meet clients' different requirements for EV battery systems under different operating conditions, Sinowatt provides a whole set of general solutions based on Li (NMC) 18650 cells, which adopts standardized intrinsic safe modules and has distinct advantage of high energy density.

      应用领域 Applications

      专用车 Special EV(48V-200V/5-100KWh)
      乘用车 Passenger EV(144V-400V/15-80KWh)
      商用车 Commercial EV(300V-600V/30-80KWh)

      技术优势 Features

       安全性 Safety

      电芯安全性:特殊隔膜/卷芯绝缘保护/CID/泄压阀设计
      模块安全性:电芯的电路自熔断/定向泄压/安全隔离设计
      控制安全性:电压/电流/温度/绝缘阻抗/漏电等安全控制

      Safety of cell: customized separator, jelly-roll insulation protection, CID and vent design
      Safety of module: self-fusing connection/oriented pressure relief vent/safety spacing against thermal transmission
      Safety of control: safe control for Voltage, Current, Temperature, Isolation Resistance and Electric Leakage etc.

      可靠性 Reliability

      针对电动汽车开发的自有18650动力电芯
      标准化电芯和模块全流程自动化批量生产
      软硬件模块化/高精度/高鲁棒性电池管理系统

      18650 power cell optimized for EVs
      Fully automatic mass production for standardized cells and modules
      BMS with modularized hardware and software, high accuracy and robustness

       高能量密度 High Energy Density

      高能量密度电芯:200Wh/kg及520Wh/L
      基于18650的结构可有效利用电池包内窄小空间
      安全吸热隔离技术增加10%装配空间
      使用树脂等轻量化材料

      High energy density cell: 200Wh/kg and 520Wh/L
      18650 modules could fully utilize battery package space
      Thermal absorption and insulation technology decreases occupied space by 10%
      Applications of light material such as resin reduce the weight of package

      宽温度窗口 Wide Temperature Range

      低于40mΩ的电芯直流内阻工作发热量小
      电芯安全间距和模块集流体确保有效散热
      满足低温-30℃(特殊可达-40℃)放电要求

      Low heat generation due to DCIR lower than 40mΩ
      Effective heat dissipation guaranteed by safe spacing between cells and module current collector
      Normally -30℃, or -40℃ specially

      长寿命与高倍率 Long Life and High Rate

      电芯寿命超过1500周且成组后寿命无衰减
      电池组可满足5年/20万公里或者8年/12万公里质保
      电芯和系统支持最高8C持续放电

      More than 1500 cycles for cell and no deterioration within battery pack
      Warranty of 5 years/200k km or 8 years/120k km
      Maximum 8C continuous discharge for cell and system

      应用案例 Application Case : FZ16C-EV324

      该项目是为某乘用车型定制开发的高能量电池系统。系统使用了标准本征安全模块,可以确保失效的单颗电芯被有效隔离,保障系统安全;高能量密度电芯加轻量化设计保证系统能量密度在120Wh/Kg以上;温度场和电流密度分布的均匀性设计保障电芯的工作条件一致,故模块循环寿命与电芯相比无明显衰减;由于电芯的内阻很低,可低温放电且发热量很小,该系统不需任何辅助温度控制装置即可在北方的冬季和南方的夏季正常工作。

      The EV battery system is customized for passenger EV. Intrinsic safe module is adopted to ensure system safety by effective thermal run-away cell insulation. The system energy density is more than 120Wh/Kg due to high energy density cell and light-weighting design. The uniformity design of thermal field and current density distribution guarantees that all the cells work under same condition, so that there is no deterioration of system life compared with single cell. The cell could discharge under low temperature and generate less heat due to low IR, so the system can operate normally in northern winter and southern summer without any additional temperature-adjusting devices.     
                                             

       

      系统参数 Specifications

      基本信息
      Basic information
      产品型号 System Model  FZ16C-EV324
      电芯类型 Cell Model  SW18650-25HP 
      标称电压 Nominal Voltage   324V 
      额定能量 Nominal Energy 30KWh 
      最大充电电流 Maximum Charging Current  100A(1.0C)
      峰值功率 Output Peak Power 60KW
      额定功率 Nominal Output Power 30KW
      质量能量密度 Gravimetric Energy Density 120Wh/Kg
      体积能量密度 Volumetric Energy Density 160Wh/L
      通讯方式 Communication Protocol CAN
      循环寿命 Cycle Life ≥1500 cycles
      安全
      Safety
      阻燃等级 Flame Retardant Rating UL94V-0
      IP防护等级 Ingress Protection IP67
      绝缘电阻 Insulation Resistance >8MΩ
      参考标准 Reference Standards GB/T 31485-2015, GB/T 31467.3-2015 etc.
      环境
      Environment
      冷却方式 Cooling Method Air cooling 
      工作温度范围 Operating Temperature Range -30℃~60℃

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