The invention provides a battery system with a lithium-sulfur range extender and an electric automobile, the battery system with the lithium-sulfur range extender comprises a lithium-sulfur battery pack, a lithium battery pack and a control system, the lithium-sulfur battery pack and the lithium battery pack are connected in parallel, and the control system is connected with the lithium-sulfur battery pack and the lithium battery pack separately. The capacity of the lithium-sulfur battery pack accounts for 10%-90% of the total capacity of the battery pack, and the discharge depth of the lithium-sulfur battery pack is 10%-70%. When the battery system with the lithium-sulfur range extender discharges, the BMS management system can detect the residual electric quantity of the lithium battery pack and the lithium-sulfur battery pack in real time, the residual electric quantity is transmitted to the automobile control system through the CAN, and the automobile control system accurately controls the discharge depth of the lithium-sulfur battery. The advantages of high energy density and high electric quantity of the lithium-sulfur battery can be fully exerted under the use conditions of low multiplying power and small current, and the endurance mileage is increased.
本发明提供一种具有锂硫增程器的电池系统及电动汽车,所述具有锂硫增程器的电池系统,包括锂硫电池组、锂电池组和控制系统,所述锂硫电池组和锂电池组并联,所述控制系统与锂硫电池组和锂电池组分别连接,所述锂硫电池组的容量占电池组总容量的10%‑90%,所述锂硫电池组的放电深度在10‑70%。本发明具有锂硫增程器的电池系统放电时,BMS管理系统能实时检测锂电池组和锂硫电池组的剩余电量,通过CAN传输到汽车控制系统,由汽车控制系统精确控制锂硫电池的放电深度。在低倍率、小电流的使用条件下可以充分发挥锂硫电池高能量密度、高电量的优势,增加续航里程。
Battery system with lithium-sulfur range extender and electric automobile
一种具有锂硫增程器的电池系统及电动汽车
2022-01-18
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
Range extender of electric automobile and control method of range extender
European Patent Office | 2023
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