Positive Electrodes TRIZ Cases

A lithium borate cathode coating and vinylene carbonate electrolyte raise gas pressure quickly during overcharge to trigger earlier current cutoff.

A carbon-coated current collector and tuned LFMP cathode composition improve battery output, capacity retention, and thermal stability.

A gel-state polymer improves electrolyte affinity and liquid retention in electrode plates, supporting faster ion migration and longer battery cycling.

Alumina coating and perovskite particles stabilize a high-Ni cathode, preserving capacity and lifespan while reducing gas generation at high temperature.

A two-layer cathode combines point-like and linear conductive materials to suppress cracks and maintain conductivity during rapid charge-discharge.

Metal-doped cathode active material improves structural stability and lifespan retention in high-Ni lithium secondary batteries at high temperature.

Setting discharge cutoff voltage to 2.8-3.2 V in LiMnFePO4 batteries limits SEI breakdown, gas generation, and cycle-life loss.

A boron-containing additive stabilizes overlithiated lithium manganese oxide, reducing transition metal elution, side reactions, and battery aging.

A silica- or alumina-sol safety coating forms a heat-resistant network that stays bonded to the positive electrode current collector at high temperatures.

Controlled cathode layer roughness and specific nonaqueous electrolyte compounds prevent microcracks and preserve low-temperature rate performance.

Controlled sintering tunes crystallite size and strain in high-Ni cathodes to limit cracking, retain capacity, and suppress resistance growth.

Controlled magnesium inclusion in a lithium-ion cathode cuts purification cost while preserving cycle life, storage stability, and tap density.

A polymer-conductive cladding enables low-temperature dry electrode formation, avoiding pinholes, cracks, wrinkles, and capacity loss.

Specific electrolyte additives improve impregnation in high-loading LFP cathodes, reducing resistance and supporting low-temperature life.

Organic acid treatment converts residual alkali on high-nickel cathodes into a protective coating that lowers impedance and improves cycle life.

A phosphite-phosphate electrolyte additive pair forms a cathode protective layer that cuts gas, interface resistance, and metal-ion elution.

Multi-step calcination with transient thermal treatment forms octahedral single-crystal NCM cathodes without flux washing, improving density and conductivity.

Controlled nickel-manganese cathode particles with minimal cobalt lower cost while reducing bulk resistance and preserving electrochemical stability.

Flake-shaped polyethylene in a negative functional layer closes ion channels at high temperature, enabling early battery shutdown before thermal runaway.

Multi-layer positive electrode sheets balance mixed cathode materials to avoid agglomeration, stabilize coating density, and improve cycle life.

A bimodal lithium metal oxide cathode with CM ≥ 70 improves crack resistance, capacity retention, and high-temperature stability.

A core-shell lithium manganese oxide cathode with a barrier layer limits transition metal dissolution to preserve rate capability and cycle life.

An aluminum-zinc coating protects nickel-manganese cathode particles at high voltage and temperature while cutting cobalt use and cost.

An O2-type Li-Na-Mn cathode with Ni-based additives avoids Co use and resists spinel transition, preserving capacity and rate at high voltage.

A bimodal positive electrode material uses Y/Zr-coated small particles and larger particles to balance ion conductivity, stability, and capacity retention.

A tri-modal lithium nickel-cobalt cathode mix balances energy density and kinetics to limit large-particle degradation and extend cycle-life.

An Al-P surface coating stabilizes high-nickel lithium cathode particles, improving high-voltage efficiency, cycle life, and cobalt reduction.

A bimodal O2 lithium-transition metal oxide boosts cathode filling density and contact area to improve capacity and cycle retention.

A polar-resin and ceramic conductive paste lowers Li-ion electrode resistance and suppresses resistance growth during charge-discharge cycling.

A carbon-coated active material and fiberized binder maintain conductive paths in dry electrodes, cutting solvent use and conductive additive demand.

A hollow porous graphene-coated sodium iron cathode improves sodium-ion battery capacity, charge-discharge behavior, and cycle stability.

An Al-P surface coating stabilizes high-nickel cathode particles, improving high-temperature cycle life and efficiency with less cobalt.

A layered Li-Ni-Mn composite oxide with controlled composition and XRD peak behavior suppresses cycle degradation above 4.8 V.

An Al-Sr surface modification layer stabilizes high-Ni cathode particles and limits electrolyte reactions to preserve capacity during cycling.

A mixed NCM and lithium cobalt cathode with larger primary particles and a 1.06-1.15 N/P ratio limits high-voltage side reactions and swelling.

A high-oxidizability cathode additive suppresses manganese deposition on the anode, raising lithium-ion battery energy density and storage life.

Carbon-coated LiFePO4 particles and an acidic polymer improve cathode slurry dispersibility, adhesion, water shedding, and lower internal resistance.