The invention relates to a secondary battery, a battery pack and a vehicle. The present invention can provide a secondary battery exhibiting excellent cycle life characteristics. According to one embodiment, a secondary battery may be provided. The secondary battery includes a positive electrode containing a positive electrode active material, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a first aqueous electrolyte held at least in the positive electrode. The pH of the first aqueous electrolyte exceeds 7. The positive electrode active material contains a lithium-containing compound exhibiting an average operating potential of less than 4.0 V based on metallic lithium.
本发明涉及二次电池、电池包及车辆。本发明能够提供一种示出优异的循环寿命特性的二次电池。根据1个实施方式,可提供一种二次电池。该二次电池包含含有正极活性物质的正极、负极、配置在正极及负极之间的隔膜、和至少保持在正极中的第1水系电解质。第1水系电解质的pH超过7。正极活性物质含有以金属锂为基准计显示低于4.0V的平均工作电位的含锂化合物。
Secondary battery, battery pack, and vehicle
二次电池、电池包及车辆
2023-01-17
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 |