Secondary Cells TRIZ Cases

Combining battery voltage with control-prohibition frequency improves vehicle battery deterioration detection without model tuning or AI.

Metal-doped, ligand-coated LiFePO4 uses carbon microspheres and an Mn-T-C/N framework to improve conductivity, structural stability, and cycling.

Integrated retention housings enable air or fluid cooling of cylindrical cells while improving module strength and reducing cooling complexity.

Dual temperature elements on cell shells and terminal posts or busbars improve battery pack status detection and charging reliability.

An in situ sodium-rich surface layer cuts side reactions and supplies sodium uniformly to improve sodium-ion battery cycle life.

Pre-formed grooves and a stepped metal safety valve improve stripper disk displacement to interrupt current and reduce battery pressure.

An elastic cell separator uses an intumescent fire layer inside a flexible shell to accommodate swelling and block thermal bridging.

Manganese-doped cathodes paired with carboxylate ester electrolyte improve Li-ion battery cycling at high voltage in both hot and room conditions.

Sulfate-ion washing of lithium-nickel cathode particles cuts charging gas generation while improving filling property and electrode density.

An OH-functional additive and acryl-cyano binder improve silicon anode dispersibility, limit swelling, and preserve conductivity over cycles.

Spacers set a uniform gap between battery modules and the cooler, improving heat conduction and preventing cooler deformation.

Integrated alloy frames and coolant compartments separate coolant from cells to prevent leak-driven thermal runaway and cut pack weight.

Vinylene carbonate and carbon tuning forms stable interface films that improve secondary battery cycling, storage, and kinetic performance.

Tuned nitrile-containing cathode additives cut high-temperature gas generation while preserving cycle performance in secondary batteries.

A single flange spanning both cooling pipes cuts sealing points, simplifies battery pack assembly, and lowers leakage risk.

Partially exposed conductive and catalyst particles prevent mixing separation, lowering decomposition potential and improving first-cycle sodium supplementation.

An asymmetric counter jig stabilizes battery cell leads during welding, improving positioning accuracy and reducing assembly defects and cost.

Expanded-joint tubes and folded-back serpentine channels balance coolant flow, cut pressure loss, and improve cell temperature uniformity.

A two-plate terminal cooler forms a compact refrigerant channel to improve electrode terminal heat removal with low pressure loss.

Thermal-sprayed PTC and conductive layers turn many discrete heater parts into one self-regulating element for faster high-power manufacturing.

A cold plate and potting adhesive replace serpentine tubes to improve cylindrical cell cooling uniformity, save space, and cut parts.

A shell-shaped nonaqueous binder dispersed in water improves binder uniformity, preserves electrode capacity, and supports longer cycle life.

Elastic buffer pads in middle cells absorb cycling expansion, easing stress concentration and lithium precipitation while preserving energy density.

A two-plate terminal cooler forms an internal refrigerant path to improve electrode terminal heat removal while limiting pressure loss and bulk.

Folded insulating sheet portions create a controlled electrolyte path that preserves insulation and suppresses partial discharge in batteries.

Facing busbar frames and an integrated upper plate remove separate end covers, cutting battery module weight, assembly steps, and cooling complexity.

A passive heat source and circulating heat medium keep vehicle batteries in range while reducing power use from active thermal control.

Narrow primary and wider secondary channels keep coolant temperature stable and cut battery cell temperature variation to under 5°C.

A bag-like cooling element conforms to uneven control unit surfaces, cutting thermal resistance, installation space, and putty-related cost.

During subzero startup, fuel cell output is diverted to a battery heater so the high-voltage battery avoids prohibited charging and starts faster.

Controlled Co, Ni, Mn, and dopant ratios in a phosphate-ternary cathode improve low-temperature power and capacity retention while reducing cost.

A dual-layer positive electrode balances resistivity across phosphate and oxide regions to reduce deintercalation imbalance and improve cycling.

Switching between outside-air and refrigerant cooling lets batteries and power conversion systems meet different temperature needs with lower energy use.

Independent mounting cavities divide the sealed battery pack space to raise grouping efficiency and energy density.

Case and cover protrusions with aligned holes let fasteners lock a secondary battery to the housing, preventing impact shift, damage, and shorts.

A borate-nitrate electrolyte additive strengthens the SEI and cathode interface to improve Li-ion capacity retention over 100 cycles.

Using first and second cells with different NP ratios, this battery design limits overcharge risk while preserving cycle life and thermal stability.

A stepped current collecting assembly limits deformation, lowers resistance, and creates heat dissipation space in battery cells.

High-filler silane polymer uses aluminum oxide and hydroxide to dissipate battery heat while staying dimensionally stable under breathing.

An alkaline sodium coating suppresses oxygen activity and electrolyte side reactions, helping sodium-ion cathodes retain stability at high voltage.

Separating the vent path from the electrode uses an exhaust compartment and gas diffusion cavity to protect insulation and reduce explosion risk.

A framework-supported hydrogel-like filler holds liquid phase change medium in shape, improving battery heat dissipation response and structural stability.

Controlled conductive additive surface area and loading keep cathode slurry workable while preserving collector adhesion and battery cycle life.

Partitioned cell spaces, venting channels, and lead-to-bottom-plate heat transfer improve cooling and limit thermal propagation in dense packs.

Ceramic coatings, inserts, and insulation help battery cell housings resist 1,000°C thermal runaway and delay casing melt.

A deformable side plate with region-specific flexibility accommodates uneven battery swelling while maintaining cooling contact and service life.

Groove-and-bolt rack stacking uses upper space efficiently, enabling precise battery rack installation and higher energy density in tight sites.

Redirected cell jet discharge and a separate cooling duct prevent external fire while maintaining battery block cooling airflow.

Small mesh air holes and an expansion chamber cool battery cells while safely discharging abnormal jet gas to help prevent external fire.