End cover assembly, battery, and electric device
AssigneeContemporary Amperex Technology Co., Limited
InventorsLiqin Wang, Quankun Li
Life of this patent
Estimating the term…
Abstract
An end cover assembly, a battery, and an electric device are provided. The end cover assembly is applied to a battery and includes an end cover, a breather valve, and a protective patch. The end cover has a first side facing inside of the battery and a second side opposite the first side and includes a first channel in communication with the first side and the second side. The breather valve includes a gas-permeable membrane in gas communication with the first channel. The gas-permeable membrane includes a gas-permeable portion opened towards the second side of the end cover. The protective patch is provided on the second side of the end cover and covers the gas-permeable portion. The battery includes the end cover assembly. The electric device includes the battery.
Claims13
An end cover assembly, applied to a battery and comprising:
- an end cover, having a first side facing inside of the battery and a second side opposite the first side and comprising a first channel in communication with the first side and the second side;
- a breather valve, comprising a gas-permeable membrane in gas communication with the first channel, wherein the gas-permeable membrane comprises a gas-permeable portion opened towards the second side of the end cover;
- and
- a protective patch, provided on the second side of the end cover and covering the gas-permeable portion,
- wherein a second channel in gas communication with the gas-permeable membrane is provided between the protective patch and the end cover;
- wherein the end cover comprises a breather valve mounting groove;
- the breather valve is located in the breather valve mounting groove;
- the first channel is provided in a bottom wall of the breather valve mounting groove;
- and the second channel is in communication with the breather valve mounting groove;
- wherein an opening of the breather valve mounting groove is provided in the first side of the end cover, or the opening of the breather valve mounting groove is provided in the second side of the end cover.
Dependencies are inferred from the claim text.