1. Report and sample of electrode with ECE demonstrate electric conductivity ≥0.25 s/cm 2. Report and sample of SSL coated separator membrane demonstrate Gurley value ≤300 s/100cc or variation ≤40% 3. Report and sample of battery cells w/ ECE & SSL to demonstrate: -- Internal resistance deviation ≤20%, capacity performance deviation ≤5% relative to control sample -- Current drop by self-shutdown at 90-120°C 4. Report and sample of battery module with battery cells comprising the SSL & ECE for prototype LEV battery modules of 10-24V to demonstrate: -- Process recipes, field application and reliability test results, by involving a prototype LEV to show module temperature rise <50 oC after discharge at 2C, and module demonstrate direct current internal resistance increase >50% at 90-120oC. 5. Contract Service Deliverables with Customer 1 - Optimized solution and technical report for improving the cycle performance of Sn-based anode material 6. Contract Service Deliverables with Customer 2 - Material evaluation report on self-shutdown layer thermal driven particle emulsion and performance evaluation report on self-shutdown coated separator membrane1. Report and sample of electrode with ECE demonstrate electric conductivity ≥0.25 s/cm 2. Report and sample of SSL coated separator membrane demonstrate Gurley value ≤300 s/100cc or variation ≤40% 3. Report and sample of battery cells w/ ECE & SSL to demonstrate: -- Internal resistance deviation ≤20%, capacity performance deviation ≤5% relative to control sample -- Current drop by self-shutdown at 90-120°C 4. Report and sample of battery module with battery cells comprising the SSL & ECE for prototype LEV battery modules of 10-24V to demonstrate: -- Process recipes, field application and reliability test results, by involving a prototype LEV to show module temperature rise <50 oC after discharge at 2C, and module demonstrate direct current internal resistance increase >50% at 90-120oC. 5. Contract Service Deliverables with Customer 1 - Optimized solution and technical report for improving the cycle performance of Sn-based anode material 6. Contract Service Deliverables with Customer 2 - Material evaluation report on self-shutdown layer thermal driven particle emulsion and performance evaluation report on self-shutdown coated separator membrane
香港能普科技有限公司
中科来方能源科技(香港)有限公司
具有高安全性电池模组越来越得到更多的关注，起因於鋰离子电池潜在有內部温度的升高而引起的爆炸和起火的危险威胁。尤其是用於动力如电动汽车和滑板车等上的电池模组，由於经常处於高电流脉冲和高连续放电倍率下使用，电池温度偏高容易引起电池局部部位发生劣化。当电池处在苛刻条件下，包括过充，短路，遭受冲击时，该部位將可能率先成为引起快速发热的起点而导致电池中產生危险的热失控，並在电池模组中扩散开进而衍生严重的火灾事件。本项目基於安全性角度考虑，设计具有智能热管理功能的电池模组。主要包含置於电池中的电子传导增强剂和自关闭层功能二个部分。透过具双亲和功能超分子技术的建立和应用，將能使得导电增强剂在电极活性层上能有效负载並且获得均匀分散。此技术可带来降低电池欧姆热阻，以达到降低电池內部热量產生的效果。此外，本项目並设计了一个具有温度敏感性的自关闭层於电池隔膜上。这个隔膜层是由高分子共聚物粒子所组成的多孔道结构。这个隔膜层置於电池正极和负极之间，並预订当温度处在90-120℃时，其能通过软化而关闭自身的孔道，从而隔绝电池反应，阻止了电池持续升高到可引发热失控效应的危险温度范围。以上智能热管理功能將於一只10-24V型的电池模组上进行设计示范及实际应用效果。