A segmented insulating film leaves a narrow uncovered path that speeds electrolyte distribution through the cell while preserving insulation and energy density.
A notched housing, insulating member, and protruding connecting sheet free more internal space for the battery cell, raising capacity density.
Varying pore geometry across separator thickness offsets winding deformation, improving electrolyte uniformity, power capability, and cell life.
A terminal connection part passes through the cap plate to cut rivets and gaskets, simplifying battery assembly while keeping reliable electrical contact.
Multiple uncoated extensions are spaced and sized to align radially when rolled, simplifying tab connection and improving electrical pathways.
An aluminum-plastic film housing with an outward skirt protects battery cell edges, disperses external force, and helps prevent leakage.
A porous insulation layer in wound electrode bends lets ions pass while blocking dendrite growth, delaying shorts and extending cell life.
Flat-sided square battery cells remove module dead space, raise packing density, and improve cooling plate contact for better output and capacity.
A segmented terminal bonding region enables laminate-film welding without preheating while limiting heat transfer to the electrode stack.
Folded tail and side seal portions shrink battery housing edge area, preserving sealing reliability while increasing energy density.
A dual-roll-core tab layout uses strip and U-shaped adapters to cut internal resistance and heat loss while keeping the battery compact.
Different tab lengths and an isolation channel reduce tab insertion short-circuit risk while easing battery cell end-cover assembly.
A terminal connection part passes through the cap plate and welds to the current collector, cutting battery parts and simplifying assembly.
Direct coupling of current collectors and a terminal connection part simplifies secondary battery assembly and removes separate rivet components.