The invention relates to a battery cell manufacturing method, a battery cell structure, a power battery and an electric vehicle, the battery cell structure comprises a square frame top cover and side plates, the upper and lower opening surfaces of the square frame top cover are hermetically connected through the side plates to form a structural member, a cavity is arranged in the structural member, and a bare battery cell and a bare battery cell insulating film are arranged in the cavity. The bare battery cell is coated with the bare battery cell insulating film, insulating films are further arranged on side plates connected with the upper opening surface and the lower opening surface of the square frame top cover in a sealed mode, a liquid injection hole communicated with the cavity is further formed in the square frame top cover, a sealing nail used for welding sealing is arranged in the liquid injection hole. And a bracket for preventing the tabs from being in contact with the side plates is also arranged between the square frame top cover and the bare battery cell in the cavity. On the basis of the cattery cell structure, the invention also relates to a corresponding manufacturing process method, power battery and electric vehicle. Compared with the prior art, the battery cell structure has the advantages that the process is simple, the operation is convenient, the efficiency is improved, the cost is reduced, and the like.
本发明涉及一种电芯制造方法、电芯结构、动力电池和电动车辆,其中的电芯结构包括口字框顶盖和侧板,口字框顶盖的上下开口表面通过侧板密封连接组成结构件且内置有空腔,空腔内设有裸电芯和裸电芯绝缘膜,裸电芯绝缘膜包覆于裸电芯外侧,与口字框顶盖的上下开口表面相密封连接的侧板上均还设置有绝缘膜,口字框顶盖上还设有与空腔连通的注液孔,注液孔内设置有用于焊接密封的密封钉,空腔内,于口字框顶盖与裸电芯之间还安装设置有用于阻止极耳与侧板接触的支架。基于电芯结构还涉及对应的制造工艺方法、动力电池和电动车辆,与现有技术相比,本发明具有工艺简单,操作方便,提高效率,降低成本等优点。
Battery cell manufacturing method, battery cell structure, power battery and electric vehicle
一种电芯制造方法、电芯结构、动力电池和电动车辆
2021-04-30
Patent
Elektronische Ressource
Chinesisch
IPC: | 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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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