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首页> 外文会议>International Advanced Automotive Battery Conference(AABC) and Ultracapacitor Conference; 20060517-19; Baltimore,MD(US) >Cost Effective Manufacture of a Li-ion Battery with Rolled-Ribbon Cells
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Cost Effective Manufacture of a Li-ion Battery with Rolled-Ribbon Cells

机译：具有成本效益的带卷式锂离子电池制造

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摘要

A compact, high power density, stacked-cell battery is built with disc-shaped Rolled-Ribbon Li-ion cells (7.5Ah). The specific energy of a high-performance battery (90-135 Wh/kg) is coupled with the specific power of an ultracapacitor (2.5kW/kg). Prototype battery development and testing has the objective of demonstrating an advanced design of a Li-ion battery to be a cost-effective choice for HEV, (Hybrid Electric Vehicles). The compact, high power density cell design allows a reduction of all materials to fulfill high power/high energy application. HPPC test results suggest that the Rolled-Ribbon Li-ion can accomplish the HEV application with about 50% of the electrode material that is generally anticipated for a Li-ion battery, for a significant cost savings. A low-cost button-cell enclosure (two stamped cups) eliminates costly header components and enables a no-weld assembly. Inadequate heat dissipation can limit the power capability of a larger capacity Li-ion cell/battery. Thermal management is a critical requirement. Inventek's Rolled-Ribbon battery design addresses the combined issues of thermal management and safety. Heat dissipation characteristics of the Rolled-Ribbon cells were examined at extremes of high power pulses and high energy continuous discharge at near adiabatic test conditions. Batteries are pulsed at 40 C rate (18-s duration) and continuously discharged up to a 15C rate. Only modest temperature rise resulted. Power pulses gave a temporary 2-3 ℃ rise and high rate full discharge gave a 10 ℃ rise. The temperature differential from center to the edge of cell never exceeded more than 1 °C. Intrinsic internal heat dissipation of the cells improves battery stability, as well as safety. As a result, passive thermal management for this design of HEV battery enhances Li-ion safety and abuse tolerance. Currently, vehicle tests are preceding using 48 volt, prototype batteries. The stacked-cell battery hardware has been evaluated by shock and vibration tests. This paper will discuss the benefits of the Rolled-Ribbon design in low cost, and high performance for application to HEV.
机译：紧凑，高功率密度的堆叠式电池内置有圆盘形的卷带式锂离子电池（7.5Ah）。高性能电池的比能量（90-135 Wh / kg）与超级电容器的比功率（2.5kW / kg）结合在一起。原型电池的开发和测试的目的是证明先进的锂离子电池设计是HEV（混合动力汽车）的一种经济高效的选择。紧凑的高功率密度电池设计可减少所有材料的使用，从而满足高功率/高能量的应用。 HPPC测试结果表明，滚动带状锂离子可以用锂离子电池通常预期的约50％的电极材料完成HEV应用，从而节省大量成本。低成本纽扣电池外壳（两个冲压杯）省去了昂贵的插头组件，并实现了无焊接组装。散热不足会限制更大容量的锂离子电池/电池的供电能力。热管理是一个关键要求。 Inventek的卷带式电池设计解决了热管理和安全性的综合问题。在接近绝热的测试条件下，在高功率脉冲和高能量连续放电的极端条件下检查了滚动带状电池的散热特性。电池以40 C的速率（持续18 s的时间）脉冲并持续放电直至15 C的速率。仅导致适度的温度上升。功率脉冲使温度暂时升高2-3℃，高速率全放电使温度升高10℃。从电池中心到边缘的温度差不得超过1°C。电池固有的内部散热改善了电池的稳定性以及安全性。结果，这种HEV电池设计的被动热管理功能增强了锂离子安全性和滥用能力。目前，车辆测试是使用48伏原型电池进行的。叠层电池硬件已通过冲击和振动测试进行了评估。本文将讨论滚动带状设计在低成本，高性能方面的优势，以应用于混合动力汽车。

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