Negative Electrodes TRIZ Cases

See how in-situ grown carbon nanotubes and nanofibers on silicon anode surfaces accommodate vol

A two-layer anode uses smaller bimodal particles and silicon oxide to improve adhesion, rolling density, and rapid-charging cycle life.

A lithium-containing polymer coating pre-lithiates silicon anodes to stabilize the SEI, limit expansion stress, and improve cycle life.

Dual graphite particle clusters with a controlled compaction density ratio raise battery energy density while limiting polarization and cycle-life loss.

A tailored binder copolymer improves active-material adhesion while suppressing slurry aggregates, electrode cracks, and peel failure.

Dual graphite active layers with different capacity-to-surface-area ratios cut anode expansion and extend cycle life while raising volumetric energy density.

A fluorine- and nitrogen-containing electrolyte additive stabilizes the SEI on silicon anodes, improving high-temperature durability and capacity retention.

A staged low-SOC lithium deposition step with pauses before higher-current charging helps suppress dendrites and short circuits in solid-state batteries.

A dual-layer graphite anode uses uncoated and carbon-coated regions to balance lithium deposition, improving fast charging and battery life.

Coumarin and halogenated cyclic carbonate stabilize high-voltage lithium secondary batteries by scavenging active oxygen and forming SEI.

A porous carbon and lithium-compound coating stabilizes silicon-oxygen anodes, limiting expansion and improving cycle life.

An oxide coating with controlled thickness on silicon composite particles and carbon suppresses erosion while preserving conductivity in Li-ion anodes.

Metal ions in the electrolyte suppress lithium plating in low-CB regions, improving capacity retention and cycling stability.

A tuned polyolefin separator pore structure resists Si-anode expansion damage, cutting Hi-pot defects and improving capacity retention.

Carbon dispersed in lithium silicate composite anode particles suppresses cracking during cycling while preserving high battery capacity.

A Formula 1 electrolyte additive forms a thin cathode interphase film to limit high-temperature resistance growth, gas generation, and cycle-life loss.

X-ray diffraction quantifies side reactions in charged battery anodes, helping screen negative electrode materials for stability and longer life.

A conductive polymer coating helps high-capacity anodes limit volume expansion, protect against electrolyte contact, and extend battery cycle life.

A cationic copolymer binder improves anode film adhesion and current collector contact, supporting safer, longer-life lithium-ion batteries.

Batch pressure reactor infiltration deposits silicon uniformly in porous particles, boosting anode capacity while limiting SEI growth and cycle damage.

Controlled resistance ratios and partial silicon use improve cycle life and charging performance in NCM lithium secondary batteries.

Region-specific carbon alignment and thickness gradients suppress edge lithium precipitation while preserving rapid charging in lithium secondary batteries.

A tailored electrolyte additive forms a stable SEI on the anode, limiting metal migration, swelling, and capacity loss during high-temperature storage.

A tuned CNT particle size and pH window improves slurry fluidity and storage stability while preserving conductive paths in silicon-based batteries.

A water-processable polymer binder balances environmental burden and adhesion while lowering the initial resistance of secondary batteries.

Metal powder in a silicon-based anode oxidizes before copper during over-discharge, enabling safer Li-ion cells without capacity loss.

A three-additive electrolyte builds a strong, flexible SEI that resists silicon anode expansion while improving cycle life, temperature range, and safety.

A Li3±xV2±yO5±z anode enables minute-level Li-Ion charging while reducing lithium plating, shorting risk, and aging.

An ion-resin passivation layer guides lithium-ion transport and limits interface reactions to suppress dendrites and extend battery cycle life.

A sea-island silicon composite anode maintains contact points during cycling to limit cracking, voids, and capacity fade.

Jet milling and classification narrow H-Nb2O5 particle size distribution, improving niobium oxide electrode capacity retention at high rates.

A LiFSI, cyclic carbonate, and hydrofluoroether electrolyte improves cycle life, suppresses lithium dendrites, and supports safer vanadium sulfide batteries.

A thermally crosslinkable binder stabilizes silicon-based anodes, limiting thickness change and preserving conductive paths for better capacity retention.

Copper oxide added to a carbon-based negative electrode lowers low-SOC internal resistance while preserving discharge capacity in lithium-ion batteries.

Insulating rivets and hooked bus-bars reduce battery module short-circuit risk while enabling safer overload disconnection.

A porous ceramic-filled separator blocks lithium deposition and dendrite growth, enabling safer high-rate charging without separator melt.

A cyclic carboxylate electrolyte additive forms a stable SEI, cutting gas generation and resistance in lithium batteries at high temperature.

Controlled heat release of 220-600 J/g in a carbon-based negative electrode sheet helps curb thermal runaway without sacrificing battery performance.

A porous carbon matrix with hierarchical pores buffers silicon swelling, preserves conductivity, and extends secondary battery cycle life.

A tuned electrolyte-anode parameter window reduces polarization and swelling during high-current charging while preserving cycle and storage performance.

Controlling the silicon surface Si/SiO2 ratio in a carbon-WO3 anode cuts impedance and improves lithium-ion penetration and capacity.

Chemically dispersed inert elements in porous silicon anodes buffer lithiation swelling and preserve electrical pathways for longer cycle life.

Using NH4-CMC with M3Me2X7 anode material prevents slurry gelation and impurity reactions while preserving battery capacity and cycle life.

A Li concentration gradient in garnet oxide suppresses cathode side reactions during firing while preserving ionic conductivity and low resistance.

Layered porosity in a lithium battery electrode cuts plate resistance and supports faster charge-discharge without sacrificing cycle life.

A PAN lattice with continuous carbon domains confines silicon expansion, preserving conductivity and cycle stability in lithium-ion electrodes.

Larger-radius alkali metal ions and a film-forming additive lower DC resistance and suppress dendrites in lithium-ion batteries.

Silane and fluorosulfonate electrolyte additives plus cathode doping stabilize SEI/CEI films, improving cycle life, kinetics, and storage.

A cyclic ether and low-viscosity salt electrolyte improves thick LFP-Li battery compatibility, Li ion transport, and lithium anode life.

A carbonaceous matrix with tuned hardness and elasticity stabilizes silicon anode particles, limiting expansion damage and SEI growth.

A carbon-layer lithium anode uses intercalated lithium and a networked amorphous layer to suppress dendrites and electrolyte decomposition.

A thin second active layer protects SiOx anodes from expansion damage and uneven lithium distribution, improving capacity retention and cycle life.

A conductive carbon coating on lithium vanadium oxide particles improves electron transport, Li insertion, and charge-discharge capacity.

Conductive coating over at least 30% of vanadium oxide particles improves electron transport, Li insertion, and battery capacity.

A core-shell anode pairs structural element oxide with a polymer-modified silicon shell to support fast charging while limiting cracking and capacity loss.

Lithium pretreatment in SiOx anodes forms lithium silicates that raise initial efficiency while limiting volume expansion and crystalline silicon growth.

A self-assembled hydrophobic film shields pre-lithiated or pre-sodiated electrode plates from air while preserving ion transport and SEI stability.

A two-layer binder distribution raises adhesion near the current collector while limiting migration that harms conductivity and energy density.

A nitrogen-containing electrolyte additive scavenges HF and PF5 and forms a stable electrode film to improve high-temperature cycling and storage.

Controlling carbon domain size in porous carbon-silicon anodes helps raise areal capacity while preserving fast charging and cycle stability.

A porosity-gradient separator balances electrolyte infiltration with rigidity to resist electrode swelling and extend sodium battery cycle life.

Specific electrolyte additives control moisture and stabilize metal ions to cut gas generation and resistance growth while preserving cycle life.

Titanium and niobium tuning in a Li-Ni cathode suppresses oxygen release and raises resistivity while preserving battery capacity.

Carbon-coated prelithiated lithium silicon oxide suppresses hydrogen in aqueous slurry while preserving initial capacity, adhesion, and cycle stability.

A dual-additive electrolyte forms a stable SEI, lowers impedance, and suppresses high-temperature gas generation in lithium-ion and sodium-ion batteries.

Ca and Al tuning in a high-Ni layered cathode and Ca coating on the anode suppress structural collapse and side reactions for better cycle life.

A dispersed silicon nitride phase protects silicon oxide or silicate anodes from erosion, preserving capacity and cycle life in secondary batteries.

Lamellar silicon alloy anodes create phase-boundary diffusion paths that limit expansion damage and improve cycle retention in lithium secondary batteries.

Porous carbon particles with silicon coating absorb anode expansion, limiting cracks, gas generation, and resistance growth in lithium batteries.

An imide-salt electrolyte paired with a silicon-carbon anode chemistry limits silicon particle loss and electrolyte breakdown to improve cycle life.

Softer alloy-forming particles buffer silicon anode swelling, preserving solid-electrolyte contact and lithium diffusion at lower pressure.

Binder zeta potential is matched to anode surface oxygen to improve slurry stability, adhesion, coating uniformity, and battery cycling.

BN and PEO in the positive electrode suppress high-voltage side reactions, preserve lithium-ion conductivity, and extend battery cycle life.

Balancing surface-layer thickness and electrolyte additive content forms a stable coating that limits silicon anode swelling and impedance rise.

A thin LTO-SWCNT top layer improves negative-electrode conductivity and helps resist internal short circuits in secondary batteries.

Carbon-coated SiOx particles with Li compounds suppress side reactions and swelling, improving lithium-ion battery capacity, cycle life, and initial efficiency.

A multi-phase lithium manganese cathode balances low cost and supply stability with high capacity by controlling layered and spinel crystal ratios.

A thicker oxide coating farther from the current collector suppresses silicon anode swelling while preserving conductivity and cycle life.

A porous CNT interlayer boosts sulfur loading and conductivity while reducing polysulfide shuttling in high-energy lithium-sulfur cells.

An uncoated zone near the current collector-tab boundary relieves silicon anode expansion stress, preserving battery capacity and cycle life.

Partial conductive coating above 30% on vanadium oxide particles improves electron transport while preserving capacity and charge-discharge behavior.

A carbon-silicon multilayer anode with conductive polymer lowers resistance and supports fast charging without sacrificing cycle stability.

Controlled carbon coating and residual carbon limit gas generation and expansion in silicon anodes while preserving capacity and cycle stability.

Dual electrolyte additives form stable SEI and CEI films, cutting high-voltage decomposition, gas generation, and resistance growth.

An acetimidoyl-silyl electrolyte additive scavenges HF and forms a stable SEI, reducing swelling and high-temperature battery degradation.

Controlled hard carbon porosity and 8-14 mS/cm electrolyte conductivity cut low-state impedance, reduce voltage rebound, and release more battery capacity.

Electrode surface layers with iron phosphate and silicon oxide cut short-circuit current and heat while preserving high energy density.

A PAM-based adhesive layer on the separator strengthens bonding to silicon anodes and suppresses swelling from volume expansion.

Ordered mesoporous material in the battery anode stores and transports electrolyte to improve cycle life and charging kinetics.

Vacuum suction through a position-controlled movable pipe discharges dry electrode mix with less clumping and smoother battery production.

A cyclic-carbonate electrolyte balances conductivity and desolvation to support fast charging in high-nickel, high-silicon Li-ion batteries.

A carbon-rich electrode surface above 29.8 at% improves conduction paths, lowers inner resistance, and helps retain battery discharge capacity.

A porous carbon and lithiophilic protection layer guides uniform lithium deposition to curb dendrites and extend lithium metal battery life.

Ordered mesoporous material in the battery anode improves electrolyte storage and ion transport to support faster charging and longer cycle life.

Organic lithium salts help thick positive electrode films maintain ion transport, cutting impedance while preserving energy density and dynamic performance.

Electrochemical salt removal shifts PCM melting temperature, helping thermal storage adapt to changing ambient conditions.

A carbonaceous base layer plus a silicon-CNT top layer preserves conductive paths during silicon expansion, improving battery cycle life.

Aldehyde-crosslinked copolymer binder suppresses silicon anode expansion and active material desorption to improve cycle stability.

A tuned graphite particle-size distribution and carbon layer improve lithium-ion diffusion while limiting side reactions in cold fast charging.

A mixed-particle anode balances Si capacity with stress relief from Li-driven expansion, helping prevent electrode collapse and improve cycle life.

An insulation coating with inorganic filler and fast ion conductor helps lithium-ion electrodes resist heat shrinkage while maintaining conductivity.

A SiOx-carbon negative electrode balances surface area to suppress charge-discharge swelling, extend cycle life, and support rapid charging.

A dual-region silicon negative electrode uses larger outer particles and smaller inner particles to curb swelling and extend battery cycle life.

Heat-treated PTFE and PAN form a conductive cathode active material that improves stability and specific capacity in alkali metal batteries.

A SiOx anode with dual carbon materials and linear conductive additives limits expansion, preserving cycle life and rapid charging.

A fluorinated ester-cross-linked binder forms a thin stable anode protective layer that limits dendrites, volume change, and unstable SEI growth.

Adding 0.1% to 5% silica aerogel to a negative electrode sheet improves electrolyte wettability, cuts side reactions, and supports cycle life.

Specific electrolyte additives form a stable SEI that suppresses gas generation and internal resistance in rechargeable lithium batteries at high temperature.

Controlled pore surface area and volume make electrode porosity more uniform, reducing polarization and improving high-rate charging.

Controlled porosity and conductivity in a silicon-based anode preserve conductive paths during volume expansion, improving lithium battery cycle life.

A dual-additive electrolyte forms stable interface films to suppress gas generation, lower resistance, and balance low- and high-temperature battery operation.

Phosphite or borate additives in ether electrolytes form a protective electrode film that suppresses oxidation and improves sodium battery cycling.

Electrolyte additives and electrode stack sizing form stable interphase films, improving ion transport and reducing lithium or sodium plating.

A urethane (meth)acrylate-based porous binder layer improves electrode adhesion, heat stability, bending resistance, and battery life.

A porous silicon anode with a 20-200 nm silicon coating preserves Li-ion pathways, suppresses SEI buildup, and extends cycle life.

A conductive undercoat and high-absorption active layer improve ionic and electronic conductivity, cutting battery DC internal resistance.

Tight anode particle-size control evens silicon deposition and stress distribution, improving battery volume energy density and charge-discharge efficiency.

Balancing pore volume, surface area, and tap density in graphite anodes improves lithium-ion diffusion, rate capability, and processability.

A graded metal silicate distribution in the negative electrode reduces Li loss and cracking while preserving lithium reversibility and discharge capacity.

Metal M doping and vinylene carbonate tune cathode film formation to curb ethylene-carbonate gas generation and stabilize sodium-ion batteries.

An —OPO— triazole additive stabilizes decomposition products, cutting gas and resistance in high-nickel, silicon-carbon lithium batteries.

A branched-alkyl electrolyte additive improves electrode impregnation and uniform film formation, supporting higher energy density and longer life.

A/MLD coatings on Li anodes and NMC811 cathodes stabilize interfaces, suppress dendrites, and support fast 5 C cycling.

Interface doping in Ni-rich layered cathodes suppresses side reactions and capacity fade, improving Li-ion battery cycle life.

A silicon-carbon composite anode with a SiC interlayer and Mg or F coating limits silicon expansion damage and preserves conductivity over cycles.

Specific carbonate electrolyte additives build a negative-electrode coating film that stabilizes positive electrode potential and suppresses charge-time capacity fade.

Removing conductive carbon from Li-S cathodes improves lithium-ion transport and energy density while preserving conductivity and stability.

Specific graphite and CNT ratios help a silicon-carbon anode maintain fast charging while improving cycle stability and battery lifetime.

Balancing electrolyte retention and packing fraction at 2≤a/b≤3 helps a battery cell raise energy density without sacrificing cycle life.

A balanced glycol, cyclic, and acyclic ether electrolyte suppresses polysulfide elution, lowers resistance, and supports stable low-temperature cycling.

A porous layer and ionic conductive polymer adhesive improve electrode adhesion durability without blocking ion transport in lithium-ion cells.

A dual-layer silicon negative electrode uses bundled single-walled CNTs to preserve conductivity, adhesion, and cycle life under volume expansion.

Binder content and electrode layer thickness are tuned to suppress metal lithium precipitation while preserving capacity retention and high-rate charging.

Single or pseudo-single overlithiated manganese oxide particles cut electrolyte side reactions, reducing gas generation and life degradation.

Controlling silicon anode surface area helps limit volume expansion, preserve conductive paths, and reduce electrode cracking in lithium batteries.

Porous carbon particles with a silicon coating balance expansion space and density to limit cracking and extend lithium secondary battery life.

A two-region negative electrode film balances silicon capacity with ion and electron transport to improve battery cycling, rate capability, and energy density.

Different anode materials aligned to flat and grooved cathode regions slow lithium-ion diffusion and improve cycle characteristics.

Controlling the carbon-layer G band on silicon oxide particles cuts SEI formation and cracking while preserving lithium-ion battery capacity.

A sulfur-salt and methyl acetate electrolyte forms a protective negative-electrode film that limits resistance growth and capacity loss after storage.

Tuned LiPF6 electrolyte and silicon-carbon anode composition cut end-of-discharge resistance and sustain battery cell power.

A dual-loading graphite anode uses natural graphite near the collector and artificial graphite above it to balance capacity, low resistance, and fast charging.

Anhydrous hydrogen fluoride with fluoride additives enables manganese electrodes to avoid passivation and corrosion while sustaining high specific energy.

A fluorinated acrylate treatment forms a protective film on alkali metal electrodes to suppress dendrites, lower resistance, and extend battery life.

A fluorinated ether electrolyte and controlled cathode porosity enable higher sulfur loading and energy density without unstable polysulfide behavior.

Electrosprayed silicon-carbon electrodes use a carbonaceous web to limit SEI formation and pulverization while improving capacity retention.

Matching shell melting point to cathode nickel content helps battery cells resist shell melting during thermal runaway.

Resin-coated carbon mixed with fibrillated PTFE suppresses excess SEI formation, helping liquid-electrolyte batteries retain cell capacity.

A carbon-coated silicon-carbon aggregate with tightly controlled porosity blocks electrolyte penetration, limiting side reactions and preserving battery cycle life.

Controlled particle shape and amorphous carbon coatings raise lithium-battery anode capacity while limiting swelling and improving collector adhesion.

A Cmca-structured lithium metal oxide with a coated core resists crystal collapse at high voltage while improving capacity and cycle life.

A low-current lithium deposition stage with pauses before higher-current charging helps solid-state batteries suppress dendrites and short circuits.

Nano-sized amorphous Si with a carbon layer helps lithium-ion anodes raise capacity while preserving structural integrity through cycling.

A triblock copolymer binder enables dry anode films with strong particle binding, higher loading, and lower battery manufacturing energy.

Porous boron-doped silicon with amorphous carbon buffers anode swelling, improving lithium battery cycle life, conductivity, and capacity retention.

Specific electrolyte additives improve wetting in high-density negative electrodes, limiting thickness growth and extending battery life.

A two-layer graphite anode uses higher crystallinity near the collector and lower crystallinity above it to raise capacity while limiting lithium precipitation.

Point discharge aligns conductive and active particles in the anode slurry to raise conductivity, energy density, and 4C rate capability.

Porous carbon nanofibre networks replace carbon black to cut internal resistance, speed charge-discharge, and extend lithium and sodium battery life.

Amide and acryl dispersants cut carbon nanotube aggregation and viscosity, improving electrode coating, conductivity, and capacity.

Patterned transfer laminates place reactive lithium uniformly on silicon anodes, cutting irreversible capacity without air exposure.

A composite suspending agent replaces CMC to stabilize negative electrode slurry, cut impedance, and improve lithium-ion battery discharge rates.

Controlled binder loss, silicon distribution, and porosity help silicon anodes limit expansion, suppress SEI growth, and improve cycling.

Acryl copolymer binders improve adhesion and suppress silicon anode swelling, helping lithium batteries retain capacity and cycle life.

A hydroxyl-polymer and boron coating suppresses lithium dendrites while maintaining ion conductivity and longer cycle life.

A tuned silicon-to-carbon ratio and particle size match help the anode keep conductivity and avoid short circuits during cycling.

A fluorine-acrylic electrode binder limits water contact in aqueous Li-ion cells, reducing side reactions, resistance, and capacity fade.

Natural graphite with an amorphous carbon coating lowers anode-electrolyte resistance and stabilizes lithium-ion migration in solid-state batteries.

A layered silicon particle-size gradient keeps conductive paths intact during cycling, reducing detachment and resistance in Li-ion anodes.

A rolled aluminum anode with dispersed Ti/B-rich phases reduces stress and cracking, helping lithium secondary batteries retain capacity over cycles.

Fluorinated ketone and Ag salt in a non-aqueous electrolyte improve electrode wetting and uniform lithium intercalation, limiting dendrites.

Anionic aromatic additives shift binder distribution to improve electrolyte wetting, peel strength, and lower battery internal resistance.

Specific cyclic sulfur compounds stabilize electrode surface films to suppress gas, limit resistance rise, and improve battery cycle retention.

A non-uniform binder gradient in the anode mixture layer strengthens collector adhesion while limiting deformation and preserving energy density.

Metal-dispersed silicon oxide aggregates kept at 65 nm or less help limit expansion damage and extend lithium secondary battery life.

Adding LiI to a LiBH4-P2S5 ionic conductor improves reduction resistance while preserving the crystalline phase for all-solid-state batteries.

A silicon oxide-graphite anode with tuned particle sizing and carbon protection reduces swelling, peeling, and impedance to extend cycle life.