Sodium-ion battery technology for two-wheelers

Phylion’s sodium-ion platform is built to balance cost, safety, and real-world durability for high-usage mobility.

Cell design highlights

• Cathode tuned for two-wheel duty cycles (high capacity + cost-efficient chemistries are widely used in sodium-ion development). [Sodium-ion battery technology [blocked] roadmaps and competitiveness](https://www.nature.com/articles/s41560-024-01701-9?utm_source=chatgpt.com).
• High-efficiency anode for long service life (hard carbon is the mainstream sodium-ion anode; ongoing work targets higher first-cycle efficiency and stability). Hard carbon for sodium-ion batteries (RSC review).
• Electrolyte design focused on lower resistance and polarization (salt/solvent/additive choices directly affect transport and interphase behavior). Electrolyte salts for large-scale sodium-ion batteries.
• Square laminated (prismatic/pouch-like) architecture for thermal balance (lower internal resistance and more uniform heat paths help reduce temperature gradients under load). Thermal stability from material to system (review).

What this delivers (website-friendly claims)

• Lower cost pathway vs. lithium (driven by sodium abundance and material choices; exact savings depend on BOM and supply chain). Nature Energy roadmaps & techno-economics.
• Designed for deep discharge and reactivation (system behavior depends on BMS limits and cell design).
• Wide-temperature operation design target (research shows sodium-ion cells can be engineered for wide operating windows with appropriate electrolyte/electrode strategies). Wide operation-temperature sodium-ion concept.
• Accurate SOC display (SOC estimation is a mature BMS research topic and continues to improve for sodium-ion). SOC estimation for sodium-ion batteries.

Self-developed PACK technology to improve performance end-to-end

This PACK architecture is designed to align materials, structure, performance, and quality control into one build standard.

Mechanical protection and everyday durability

• Insulated cell holder + constrained fixation to reduce movement and rubbing.
• High-strength frame clamping to improve vibration and drop tolerance (mechanical integrity is a key pack safety driver). Battery pack mechanical reliability & safety review.
• Connector durability target: designed for 3,000 insertion/extraction cycles (final life depends on connector spec and use conditions).
• High-strength PC+ABS housing with IPX7 waterproofing (protection ratings are defined under IEC guidance). IEC ingress protection (IP) ratings overview.
• BMS-based safety management (monitoring, protection logic, balancing, diagnostics). Battery management systems review.

System-level design principles

• Cell grouping / matching to improve consistency and slow capacity divergence over time.
• Minimized size with high-strength lightweight materials for portability without sacrificing robustness.
• Single-module architecture for easier service, lower replacement cost, and flexible deployment across use cases.

Manganese-based dual-core material system

This chemistry strategy combines two complementary cathode directions to improve cycle life, cold-weather usability, and safety margin.

Core 1: Single-crystal high-voltage spinel (lithium manganate family)

• Higher-voltage cathode pathway (high-voltage spinel LNMO is widely reported around ~4.7 V vs. Li/Li⁺). LNMO high operating voltage and energy density (RSC review).
• Single-crystal particles reduce grain-boundary cracking (fewer grain boundaries helps limit crack growth and related degradation). Single-crystal cathodes and crack mitigation (PMC / Chem Rev).

Core 2: Lithium ferromanganese phosphate (LMFP)

• Higher-voltage plateau enabled by Mn redox (LiMnPO₄ chemistry is commonly cited around ~4.1 V vs. Li/Li⁺, compared with ~3.4 V for LiFePO₄). Voltage comparison and theoretical energy density (J. Power Sources).
• Energy-density upside vs. LFP direction (the same reference reports higher theoretical energy density for LiMnPO₄ than LiFePO₄). J. Power Sources discussion.
• Positioned as an LFP-successor route in industry research (aiming for higher energy density while keeping cost/safety strengths). LMFP vs. NCM resistance study (MDPI).

What this enables in product terms

• Extra-long cycle life: up to 3500+ cycles (typical outcome depends on cell design, charge window, and duty cycle).
• Cold-weather usability: designed for high -20°C discharge availability (final retention depends on electrolyte, impedance, and BMS strategy).
• Higher-voltage energy boost: chemistry direction supports a meaningful energy-density uplift vs. conventional LFP-based approaches, while maintaining strong safety fundamentals.