【正文】 Hi gh de Cycles 50 100 150 200 250 300 350 400 450 Cycles Institute of New Energy Technology, INET, Tsinghua University 1 1 Effects of charging/discharging depth 2 1 0 0 50 100 150 200 250 300 350 400 450 Cycles 0 50 100 150 200 250 300 350 400 450 ep ? 影響動(dòng)力電池的使用壽命的因素 – 溫度 – 電流 – 充放電深度 動(dòng)力電池的使用壽命評(píng)測(cè) 務(wù) Effects of charge current Effects of w. 20 杰 1 汽 1 騰 2 to ev co m Internal Resistance Voltage [V] Current [A] R=ΔV/ΔI 動(dòng)力電池的使用壽命評(píng)測(cè) 杰 1 汽 20 會(huì) 車動(dòng) ww 力電 ge 池研 p 討會(huì) en t. Degradation 3500 Remaining life Institute of New Energy Technology, INET, Tsinghua University Temperature of a battery 0 772 500 500 1500 2500 4500 2500 1500 Voltage response/V Current/A Day Present Battery *BMS: Battery Management System **PLC: Programmable Logic Controller Battery Temperature Battery Voltage Battery Current BMS* Controller (PLC**) Internal resistance degradation rate Remaining battery life (Estimated) Monitor (ex. Based on an Internal resistance degradation rate) 1623 2510 3410 4197 5022 Time [s] t Drate ? kt x ?1 Degradation rate of Internal resistance Target Accuracy: 10% Lifetime judgment criteria Degradation rate (Present) 1 (Estimated) 1 騰 務(wù) w. (ex. Based on the detection of an internal resistance status) to ev co m 杰 1 汽 20 會(huì) 車動(dòng) ww 力電 ge 池研 p 討會(huì) en Institute of New Energy Technology, INET, Tsinghua University 58 1 騰 務(wù) w. to ev t. co m 。 20V過充 150℃ 熱箱 5小時(shí)以上 標(biāo)稱容量 12Ah，三元氧化物 正極材料。 ? The battery munity does not have adequate tests to evaluate safety as it relates to the safety incidents that have taken place or could take place. ? 人們還沒有找到合適的方法來預(yù)測(cè)和評(píng)測(cè)這類安全隱患問題 ? 我們?cè)谧龉ぷ?，希?“十二五 ”結(jié)束時(shí)，這個(gè)問題得到一定程 度的解決。 road charging stations. Current Market Ultra fast charging cell Ultra‐fast charge Station Institute of New Energy Technology, INET, Tsinghua University 1 騰 電池 p en co 快速充電 (up to 5 min, 80% capacity) 是解決電動(dòng)車?yán)m(xù)駛里程 m 杰 1 汽 20 車 會(huì) 務(wù) 動(dòng)力 w. 電池 to 研討 ev 會(huì) t. Toshiba Super Charge Lithium Ion Battery SCiB ? Lithium Manganese oxide Spinel cathode LMO ? Lithium Titanate Oxide anode – LTO ? Recharge to 90% of full capacity in less than 5 minutes. ? Excellent safety because of high level anode stability. ? 6000 cycles of full to 90% of initial capacity. ? Low temperature discharge from 30C. ? SCIB is currently available on the Schwinn Tailwind electric bike. 65 Wh/Kg 131 wh/l 650 W/Kg 1316 W/l Institute of New Energy Technology, INET, Tsinghua University VW amp。杰 1 汽 動(dòng)力鋰離子電池現(xiàn)狀、安全性及壽命評(píng)測(cè) 20 會(huì) 車動(dòng) ww 力電 ge 池研 p 討會(huì) en 2022汽車動(dòng)力電池國(guó)際研討會(huì) INET, Tsinghua University 2022年 2月 2324日，上海 何向明 清華大學(xué)核研院 新型能源與材料化學(xué)研究室 Institute of New Energy Technology 1 騰 務(wù) w. to ev t. co m 內(nèi)容 杰 1 汽 20 會(huì) 車動(dòng) ww 力電 ge 池研 p 討會(huì) en ? ? ? ? 動(dòng)力電池現(xiàn)狀 鋰離子動(dòng)力電池的安全性 鋰離子動(dòng)力電池的使用壽命 Institute of New Energy Technology, INET, Tsinghua University 1 騰 清華大學(xué)核研院鋰離子電池實(shí)驗(yàn)室介紹 務(wù) w. to ev t. co m 杰 1 汽 20 會(huì) 車動(dòng) ww 力電 ge 池研 p 討會(huì) en The Great Wall Ming Institute of Nuclear and New Energy Technology Tsinghua University ? ? Less than 50 minutes drive 45 km The Institute Tsinghua Beijing Institute of New Energy Technology, INET, Tsinghua University 1 騰 務(wù) Tombs w. to ev t. co m Lithium ion騰會(huì) 車動(dòng) 杰 11汽 ww 力電 ge 池研 p 討會(huì) en Institute of New Energy Technology, INET, Tsinghua University 2 Ramp。 w. to