Secondary Cells TRIZ Cases

A polyanionic coating on layered transition metal oxide cathodes prevents air-induced degradation and gas generation during storage.

A core-shell structure with an Al2O3 coating and specific electrolyte additives resolves stability issues in high-nickel cathodes.

An aqueous binder system combines acrylate monomers with a functional monomer to form a flexible polymer matrix.

Estimating outdoor air temperature through internal battery thermal changes during cooling cycles eliminates external sensor costs and physical damage risks.

A lightweight connector design eliminates threaded bores in heat exchanger panels to enable thinner walls and reduce system mass.

Distribution plates under access floors direct cooling air to battery racks, minimizing temperature deviations between packs.

A metallized plastic film package forms direct electrical connections between battery units to maximize the current path area.

A traction battery guide means deflects fluid volume flow from safety valves toward a ventilation element.

Segmented end plates with alignment protrusions prevent short circuits between electrodes and wires.

Adjust sodium source based on nickel or manganese content to minimize impurities and maintain stability during fabrication.

An inactive phosphate coating on secondary particles suppresses electrolyte oxidative decomposition and capacity loss during high-temperature storage.

A cobalt-free cathode material using nickel and manganese oxides to deliver high energy density in lithium-ion batteries.

A metallic barrier layer with a melting point depressant joins ceramic and metal components through screen printing and low-temperature sintering.

A battery uses a thermal resistance element to direct heat away from the cell.

An optical battery cell separator enables continuous fault detection by transmitting light signals that change based on internal defect states.

Circumferential grooves on a resin core increase static friction to prevent widthwise misalignment of wound separators during conveyance.

Hardware voltage detection and logic circuits autonomously switch charging paths, eliminating software dependency to protect battery lifetime during power loss.

Aqueous lithium carbonate reacts with gaseous hydrogen fluoride to precipitate solid lithium fluoride directly.

A secondary battery built-in charge circuit uses dual reverse-current prevention parts to block unwanted current flow.

A propylene-based resin microporous film enables smooth lithium ion passage through controlled stretching and annealing.

A non-aqueous electrolyte forms passivation films on electrodes to reduce side reactions and maintain capacity.

A battery cell with three side terminals and one opposite terminal enables flexible series or parallel connections by adjusting orientation.

Merging bus bars with cooling channels reduces assembly complexity while improving rigidity and energy density.

A power switch separates high current switching from communication signals using distinct semiconductor sections.

A battery housing uses a controlled adhesive layer to join cover bodies, enabling gas release during internal pressure spikes.

Non-reactive and carbon coatings on lithium nickel oxide cathodes prevent exothermic reactions while maintaining high temperature stability.

A battery module uses a matching structure on plates to define a cooling path and enhance coupling strength between heterogeneous materials.

A battery separator film with controlled curling uses specific drying tension to balance shrinkage stress between layers.

A processing circuit monitors charge level and voltage to restrict power flow through regulators.

A flip-able cooling jacket uses internal channels to circulate liquid coolant for efficient heat transfer from battery cells.

A control system manages battery temperature by analyzing selected routes to minimize heating or cooling requirements.

A cathode material with 90% mesopores of 2-20 nm provides shorter lithium ion migration paths.

Segmented clad bus bars equalize impedances between terminals and tabs, suppressing voltage detection errors caused by resistance variations.

Potassium and nickel substitution in LiMn2O4 prevents manganese dissolution, achieving 250 mAh/g capacity.

Segmented conductors with overlapping areas connect battery cells via welding to reduce parasitic shunts.

A non-aqueous electrolyte uses a fluorine-based surfactant to lower viscosity and surface tension in high-concentration lithium salt solutions.

Corrugated plates absorb cell expansion to reduce housing load while cooling channels dissipate heat from central cells.

A battery housing with orthogonal walls forms channels that receive cells and connect directly to a cooling system.

Acid treatment removes Li2O from the cathode surface, creating vacancies that improve initial coulombic efficiency.

Discrete and continuous oxide layers on high-nickel cathodes paired with specific electrolyte additives form a dense composite film that reduces gas production.

Integrating voltage detection conductors within the busbar housing eliminates external routing, reducing assembly complexity and time.

Inorganic phosphate particles suppress transition metal elution in lithium-ion battery cathodes.

Cell barriers use composite flange seals to stabilize battery cells and define heat exchange passageways.

Segmented flow channels and perpendicular coolant paths reduce temperature deviations between cells while maintaining compact pack geometry.

A battery module heat exchanger uses mechanical assembly to maintain thermal contact with electrochemical cells.

A battery pack integrates a heat dissipation member and plate member on cell electrodes and side surfaces within an exterior case.

MgxMyO2 composite oxide cathode creates percolative conduction pathways that increase magnesium ion mobility and discharge capacity.

A power storage adapter dynamically adjusts electrical supply based on system load and battery state of charge.

A porous polyimide film maintains high strength and wettability through controlled acid value and metal content.

A double-walled housing uses a liquid-filled gap to manage heat transfer between an accumulator and the environment.