18239592. SECONDARY BATTERY COMPRISING ELECTRODE TAB PROVIDED WITH INSULATION COATING LAYER simplified abstract (LG Energy Solution, Ltd.)
SECONDARY BATTERY COMPRISING ELECTRODE TAB PROVIDED WITH INSULATION COATING LAYER
Organization Name
Inventor(s)
Joo-Young Chung of Daejeon (KR)
SECONDARY BATTERY COMPRISING ELECTRODE TAB PROVIDED WITH INSULATION COATING LAYER - A simplified explanation of the abstract
This abstract first appeared for US patent application 18239592 titled 'SECONDARY BATTERY COMPRISING ELECTRODE TAB PROVIDED WITH INSULATION COATING LAYER
Simplified Explanation
The patent application describes a secondary battery with an improved insulation coating layer on the electrode tab, which prevents detachment and maintains excellent insulation to minimize internal short-circuits and ensure safety.
- The secondary battery includes an electrode assembly with an electrode tab extended from an electrode current collector.
- The electrode tab is coated with an insulation coating layer containing an inorganic filler and a binder.
- The binder has an electrolyte uptake between 0% and 50%, determined by a specific method.
- The insulation coating layer with a binder having low electrolyte uptake improves adhesion and prevents detachment from the electrode tab.
- This ensures an excellent insulation state in the secondary battery, minimizing the risk of internal short-circuits and enhancing safety.
Potential Applications
- This technology can be applied in various secondary battery systems, such as lithium-ion batteries, nickel-metal hydride batteries, and others.
- It can be used in portable electronic devices, electric vehicles, renewable energy storage systems, and other applications that rely on secondary batteries.
Problems Solved
- Detachment of the insulation coating layer from the electrode tab can lead to internal short-circuits in secondary batteries, posing safety risks.
- The improved insulation coating layer with a binder having low electrolyte uptake solves this problem by enhancing adhesion and preventing detachment.
Benefits
- Enhanced safety: The improved insulation coating layer minimizes the risk of internal short-circuits, ensuring the safety of the secondary battery.
- Improved adhesion: The binder with low electrolyte uptake improves the adhesion of the insulation coating layer, preventing detachment from the electrode tab.
- Maintained insulation state: The insulation coating layer maintains an excellent insulation state, preventing electrical leakage and ensuring the proper functioning of the secondary battery.
Original Abstract Submitted
Provided is a secondary battery which includes an electrode assembly having an electrode tab extended from an electrode current collector, wherein the electrode tab is provided with an insulation coating layer containing an inorganic filler and a binder, the binder has an electrolyte uptake more than 0% and less than 50%, and the electrolyte uptake is determined by a predetermined method. In the secondary battery according to the present disclosure, the insulation coating layer provided in the electrode tab includes a binder having a low electrolyte uptake, and thus the insulation coating layer has improved adhesion and is prevented from detachment from the electrode tab. As a result, it is possible to maintain an excellent insulation state and to minimize an internal short-circuit in a secondary battery, thereby ensuring safety.
