SECONDARY BATTERY SYSTEM

• Main Author: MINAMI KEIICHI
• Format: Patent
• Language: English; Japanese
• Published: 28.12.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a system capable of recovering a performance of a secondary battery when the performance of the secondary battery is reduced.SOLUTION: A secondary battery system has a secondary battery, a heating device, and a control device. The secondary battery has a positive electrode and a negative electrode. One or both of the positive electrode and the negative electrode contain an active material, a solid electrolyte, and Li-containing salt. The active material contains a material whose volume changes with charge and discharge of the secondary battery. A target to be heated by the heating device contains the Li-containing salt. The control device controls the heating by the heating device so that a temperature of the Li-containing salt becomes equal to or greater than the melting point of the Li-containing salt in a case where it is determined that the performance of the secondary battery is equal to or less than a constant level.SELECTED DRAWING: Figure 1 【課題】二次電池の性能が低下した場合に二次電池の性能を回復させることが可能なシステムを開示する。【解決手段】本開示の二次電池システムは、二次電池、加熱装置及び制御装置を有し、前記二次電池は、正極及び負極を有し、前記正極及び前記負極のうちの一方又は両方は、活物質、固体電解質及びＬｉ含有塩を含み、前記活物質は、前記二次電池の充放電に伴って体積が変化する物質を含み、前記加熱装置によって加熱される対象は、前記Ｌｉ含有塩を含み、前記制御装置は、前記二次電池の性能が一定以下であるものと判定された場合に、前記Ｌｉ含有塩の温度が前記Ｌｉ含有塩の融点以上となるように、前記加熱装置による加熱を制御する。【選択図】図１