Battery shell, battery, power battery pack and vehicle
Battery shell, battery, power battery pack and vehicle
- Neue Suche nach: JIAO XIAOPENG
- Neue Suche nach: LI NA
- Neue Suche nach: LI SHICAI
- Neue Suche nach: GUO HUANLIANG
- Neue Suche nach: QIAO LULU
- Neue Suche nach: JIAO XIAOPENG
- Neue Suche nach: LI NA
- Neue Suche nach: LI SHICAI
- Neue Suche nach: GUO HUANLIANG
- Neue Suche nach: QIAO LULU
The invention discloses a battery shell, a battery, a power battery pack and a vehicle. The side wall of the battery shell is provided with a hollow space, the hollow space is internally provided with a first phase filler and a second phase filler, and the first phase filler and the second phase filler are directly mixed in the hollow space. The second phase filler is a saturated aqueous solution of the first phase filler; when the temperature of the battery rises, the first phase filler is suitable for being dissolved in the second phase filler and absorbing heat; and when the temperature of the battery is reduced, the first phase filler is suitable for being separated out from the second phase filler and releasing heat. According to the battery shell disclosed by the embodiment of the invention, the battery temperature can be reduced, and the battery is prevented from being in a high-temperature running state for a long time, so that the capacity fading of the battery is delayed, and the cycle performance and safety performance of the battery are improved. In addition, the temperature of the battery can be prevented from being rapidly reduced, the battery can be at the optimal use temperature, the service life of the battery is prolonged, and the cycle performance is improved.
本发明公开了一种电池外壳、电池、动力电池包和车辆，电池外壳的侧壁具有中空空间，中空空间内设有第一物相填充物和第二物相填充物，第一物相填充物和第二物相填充物在中空空间内直接混合，第二物相填充物为第一物相填充物的饱和水溶液；电池的温度上升时第一物相填充物适于溶解于第二物相填充物中并吸收热量；电池的温度下降时第一物相填充物适于从第二物相填充物中析出并放出热量。根据本发明实施例的电池外壳，可以降低电池温度，防止电池长时间处于高温运行状态，从而延缓电池的容量衰减，提高电池的循环性能和安全性能。另外，可以防止电池的温度快速降低，有助于电池处于最佳使用温度，从而提升电池寿命，提升循环性能。
Dokumentinformationen
Battery shell, battery, power battery pack and vehicle
电池外壳、电池、动力电池包和车辆
2021-10-26
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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