Electrode Carriers/Collectors TRIZ Cases

Ternary Si-Ti-M alloy negative electrode suppresses volume expansion to resolve the trade-off between high capacity and cycle lifetime in lithium-ion batteries.

Insulating layers on active substance-free collector portions prevent internal short circuits from electrode misalignment, maintaining volume capacity density.

Composite metallic current collectors prevent peeling during lamination, maintaining discharge capacity and voltage.

Segmented collector grooves confine lithium deposition and prevent passivation layer delamination.

Bare current collector surfaces prevent conductive particles from penetrating separators during nail penetration, avoiding thermal runaway.

Voids in the negative electrode active material layer hold electrolyte lithium ions, preventing precipitation risks while maintaining high energy density.

Nonconductive filler particles maintain insulating properties at high temperatures, preventing conductive network recovery and ensuring thermal safety.

A rechargeable battery electrode uses a mixed layer to maintain composite paste thickness and binding strength.

Symmetrical grooves in a segmented current collector accommodate elastic fixing members, increasing energy density within reduced battery volumes.

A positive electrode collector melts at 630°C to separate from a short-circuited area.

A silicon core anode coated with a carbonaceous shell containing lithium titanium oxide prevents SEI layer formation and extends battery lifespan.

Optimized active material dimensions and etched aluminum foil surface reduce polarization while maintaining mechanical strength during high-rate cycling.

Expanded graphite cathode layer with 0.43 to 2.0 nm inter-planar spacing overcomes low energy density and rapid capacity decay in aluminum secondary batteries.

Porous few-layer graphene anode structure enhances electrical conductivity in lithium-ion batteries, reducing dendrite growth and irreversible capacity loss.

A composite material joins porous metal bodies through entangled three-dimensional mesh-like skeletons to create a unified structure.

A fuel cell current collector integrates multiple plates with distinct resistance values to manage electrical load distribution.

Interfacial polymer binder layer impregnates porous carbon electrode pores to join components and conduct electrons.

A lithium ion battery positive electrode uses a coupling agent on the active material surface to suppress moisture absorption and prevent gas generation.

A thermoplastic current interrupt assembly deforms to reduce electrical conductivity, mitigating internal temperature increases during battery short circuits.

Zinc and small elements form grain boundary compounds to prevent deformation during battery cycling.

Hexamethylenetetramine modifies MnO2 shell structure to resolve the trade-off between mass loading and rate performance in energy storage devices.

Composite polymer binder particles sized 0.5 to 0.7 µm maintain structural stability and adhesion force during repeated charging cycles.

Dendritic protrusions on a metal shell create localized current density to electrochemically adhere active material, preventing delamination during cycling.

Rough anodized aluminum oxide layer on porous current collector prevents coating delamination during nail penetration tests.

A 3D lithium anode with a conductivity gradient directs ion deposition, preventing dendrite growth and extending cycle life.

A segmented surface treatment layer on copper foil prevents roughening particle detachment while maintaining strong adhesion to active substances.

Metal layers bonded to a resin substrate via ultrasonic welding prevent tab-induced short-circuiting while maintaining high weight energy density.

A multi-layered protective structure comprising a polymer layer and single-ion conductive layer forms on the current collector.

Direct plasma etching creates silicon nanowires that store lithium ions reversibly while resisting structural damage from volume expansion.

Ion conducting coating on carbon monofluoride electrodes prevents solvent intercalation, reduces voltage delays, and extends service lifetimes.