| 摘要 |
<p>The present invention relates to a hybrid electric energy storage device, and aims to implement the hybrid electric energy storage device by connecting an auxiliary power supply to a battery (primary battery) used as a main power supply without a protection circuit. The present invention provides the hybrid electric energy storage device comprising: a lithium primary battery including lithium; and a lithium ion capacitor connected in parallel to the lithium primary battery. The lithium primary battery is the main power supply having a rated voltage of 3.6V, and the lithium ion capacitor is an auxiliary power supply having a rated voltage of 3.6-3.8V. Accordingly, the voltage balance between the lithium primary battery and the lithium ion capacitor can be optimized, leading to a benefit in energy density.</p> |
