Secondary Cells TRIZ Cases

A layered sulfur-carbon cathode limits sulfur dissolution while preserving conductivity, compaction density, and battery energy density.

Cutout cell-carrier recesses guide potting between battery cells while preserving cooling-plate thermal contact and simplifying module assembly.

Hollow secondary particles confine sulfur inside the cathode to limit electrolyte dissolution, raising energy density and cycle life.

Ceramic-coated flame barriers, aramid wraps, and venting resin isolate heat, flames, and gases to stop thermal runaway spreading between cells.

Segmented pouch seals create a lower-pressure vent path, releasing gas in a controlled way to reduce thermal runaway and explosion risk.

Internal heat absorption members and coolant passages pull heat from battery cells to cut thermal gradients in large rechargeable packs.

Group 15/16-doped Si-C particles blended with graphite limit expansion, maintain conduction paths, and improve cycle and input-output behavior.

A frame between pack units creates a controlled heat-transfer path that improves dissipation and helps contain thermal runaway propagation.

A melt-open cooling unit disperses liquid across tightly packed battery cells, improving heat removal while preserving module energy density.

A pressure-responsive vent sealing cap releases battery gas while blocking external oxygen re-entry to reduce ignition and explosion risk.

Terminal-to-casing heat conduction cools cylindrical cells without side cold plates, improving pack thermal efficiency and preserving space.

A thin LiF coating deposited on lithium metal suppresses dendrite growth and improves charge-discharge reversibility without consuming the anode.

Internal cavities in aggregated cathode particles buffer charge-discharge strain, reducing rupture, gas growth, and cycle-life loss in high-nickel cells.

Controlled Li-Mn-Ni composite oxide composition, surface area, and pore size help raise cathode energy density without lowering material density.

A nonstandard terminal order with anti-insertion features prevents reverse mounting errors and maintains stable battery pack contact alignment.

Rapid slurry-phase carbon detection enables second carbon-source dosing before sintering, reducing waste and stabilizing LiFePO4 quality.

A retractable holding member lets one charging station support magnetic lamp charging and vertical mobile phone charging in a portable form.

Magnesium and fluorine tuning in a Li-Co-O cathode suppresses cobalt elution under high voltage while preserving capacity and cycle life.

A layered cathode with two particle size ranges limits breakage and gas generation at high compaction density while sustaining high-rate cycle life.

A sodium borate polyurethane foam sheet helps delay battery thermal runaway while preserving cell energy density and electrochemical performance.

Firming particles stiffen silicone rubber foam so battery cell gaps resist compression and heat transfer slows during thermal runaway.

Extruded housing walls with internal coolant channels improve cooling for tall battery cells while preserving sealing and structural support.

Large cell openings ease insertion, while plates, stops, adhesive, and coolant flow keep battery cells aligned and evenly cooled.

Alternating current shared through a DC/DC converter heats mixed-chemistry battery cells at different rates to reach optimal temperature in cold conditions.

Fluorinated linear carboxylate ester electrolyte balances nickel cathode loading to improve high-temperature cycling, cut gas, and lower impedance.

Applying at least 0.5 MPa with a conductive LiFSO3 electrolyte helps limit resistance growth and capacity loss during repeated high-rate cycling.

A PCM-filled barrier with discharge holes absorbs heat and forms an insulating air gap to delay thermal spread between battery modules.

A cooling channel formed mainly in one housing portion simplifies vehicle electronics manufacturing while maintaining effective component cooling.

A thermally conductive, electrically insulative fluid tube cools battery busbars directly, improving heat removal without short-circuit risk.

A conductive frame cover and coolant flow space improve pouch-cell heat dissipation, durability, and short-circuit protection.

A cyclic sulfuric acid ester, cyclic ether, and dinitrile electrolyte blend forms a protective film that improves cyclability and suppresses lithium plating.

A split housing uses a flame passage, blocking member, and separate cooling path to stop cell-to-cell flame spread and limit heat buildup.

By varying graphene foam compression, this case tunes heat flow between source and sink to widen thermal control and help prevent thermal runaway.

Aromatic carboxylic acid and aryl halide additives form a coating film that immobilizes lithium carbonate and suppresses lithium plating.

Flexing indicator tabs show when an accessory is fully engaged to a sealed enclosure, enabling visual assembly checks without extra leak tests.

A one-piece shell with tuned fragile and non-fragile regions enables timely battery cell pressure relief without sacrificing normal-use strength.

Controlled silicone injection and mold temperature tuning speed battery module curing while improving thermal runaway protection.

Cooling liquid contacts bus bars and electrode junctions to cut thermal resistance and improve battery module cooling without added height.

Optimized P2-type Na-containing oxide particles raise sodium-ion battery weight energy density while preserving capacity through composition and particle-shape control.

Extruded and injection-molded thermoplastic parts are melt-bonded to form sealed coolant channels without adhesives, reducing weight and corrosion.

A light-transmitting cell frame and photocurable adhesive speed battery cell fixation while maintaining secure bonding under vibration and shock.

A hydrocarbon-oxygenate immersion fluid cools electrical components while lowering conductivity, corrosion risk, and freezing in EV and electronics systems.

Integrated elastic supports and fixing features compress the cell stack to suppress swelling, cut parts, and raise module cell density.

Sequential heat-exchanger sections and sub-pack heat sinking redistribute uneven battery heat loads for more uniform cooling and longer pack life.

A carboxylic-acid and calcination route forms uniform Li3PO4 on Li-NMC, enabling water-stable aqueous electrode fabrication and lower resistance.

Side-mounted heat sinks cool the cell assembly while reducing tube bends and differential pressure without increasing battery pack height.

Spaced tray supports and adhesive through-holes stiffen the pack bottom and slow hot gas discharge to reduce open fire risk.

Laser-made concavo-convex patterns on a battery lead tab improve insulating film fusion, cut defects, and avoid chemical pollution.