Zhong Haoxiang

Zhong Haoxiang

Zhong Haoxiang is a Battery Materials & Electrochemistry Engineer specialising in cell selection, cycle-life evaluation, degradation mechanisms, and the performance trade-offs between lithium-ion chemistries. His work examines cathode and anode materials, cell testing, sourcing criteria, and the balance between energy density and power density for compact battery energy storage applications.

LFP Battery End-of-Life Recovery: Regeneration vs. Hydrometallurgical Extraction — A Procurement Guide

TL;DR LFP cells sourced today will reach end-of-life in meaningful volumes within the next several years, and the recovery pathway your supplier uses directly determines whether reclaimed material re-enters the supply chain as battery-grade feedstock or gets downgraded to industrial…

Read article →LFP Battery End-of-Life Recovery: Regeneration vs. Hydrometallurgical Extraction — A Procurement Guide

Battery Material Traceability and Cascade-Use Cell Qualification: A Procurement Guide for Global Buyers

TL;DR Recycling infrastructure data shows that in regions with high EV adoption density, formal collection network coverage exceeds 60%, while coverage in less-developed areas falls below 20% — creating a structural resource recovery gap that directly affects battery material traceability…

Read article →Battery Material Traceability and Cascade-Use Cell Qualification: A Procurement Guide for Global Buyers

EPR Recovery Modes and Carbon Trading in Battery Supply Chains: A Procurement Guide

TL;DR Under a carbon-trading-integrated closed-loop supply chain model, manufacturer-direct recovery (Mode M) consistently delivers the highest battery recovery volumes, lowest carbon emissions, and maximum manufacturer profit compared to all third-party or OEM-led alternatives. For buyers sourcing cells or pack assemblies,…

Read article →EPR Recovery Modes and Carbon Trading in Battery Supply Chains: A Procurement Guide

LiFePO₄ Cycle Life vs. Temperature: The 60°C Degradation Threshold Buyers Miss

TL;DR Graphite||LiFePO₄ cells cycled above 60°C exhibit activation energy shifts and accelerated capacity fade—losing 15% capacity in 1,200 cycles at 80°C versus 5% at 25°C—driven by SEI thickening (5,670 ppm phosphorus deposition), graphite particle cracking, and Fe²⁺ dissolution reaching 0.23…

Read article →LiFePO₄ Cycle Life vs. Temperature: The 60°C Degradation Threshold Buyers Miss

LFP Cycle Life Degradation Above 60°C: Why Accelerated Test Data Misleads Buyers

TL;DR Systematic charge/discharge cycling of graphite||LiFePO₄ pouch cells across five temperature points (25–80 °C) reveals a hard degradation mechanism shift above 60 °C: Arrhenius linearity breaks down, SEI growth accelerates nonlinearly, Fe²⁺ dissolution increases dramatically, and active material cracking propagates…

Read article →LFP Cycle Life Degradation Above 60°C: Why Accelerated Test Data Misleads Buyers

Liquid-Cooled LFP Battery Pack Energy Efficiency: Thermal Parameter Optimization Guide

TL;DR At 0.5P constant-power charge-discharge, liquid-cooled LFP battery packs achieve peak round-trip energy efficiency of 95.07–95.16% when coolant setpoint is held at 24°C and cell initial temperature is pre-conditioned to 29°C. Buyers specifying BESS pack efficiency above 94% must treat…

Read article →Liquid-Cooled LFP Battery Pack Energy Efficiency: Thermal Parameter Optimization Guide

LiFePO₄ Cycle Life Testing: Why 60°C Is the Critical Temperature Threshold for Accelerated Degradation Protocols

TL;DR Graphite||LiFePO₄ pouch cells tested across five temperature zones (25–80 °C) show a critical degradation threshold at 60 °C: above this point, activation energy shifts, SEI film growth accelerates by 254%, graphite particle cracking intensifies, and Fe²⁺ dissolution jumps from…

Read article →LiFePO₄ Cycle Life Testing: Why 60°C Is the Critical Temperature Threshold for Accelerated Degradation Protocols

Li-Ion vs LFP Electrolyte Chemistry: From Liquid to Solid-State — A Procurement Engineer’s Technical Guide

TL;DR Solid electrolytes demonstrate ionic conductivities approaching 10⁻³ S/cm at room temperature, but interface resistance at electrode-electrolyte boundaries remains the single largest barrier preventing commercial deployment — not raw conductivity. For buyers sourcing battery cells or packs today, this means…

Read article →Li-Ion vs LFP Electrolyte Chemistry: From Liquid to Solid-State — A Procurement Engineer’s Technical Guide

Battery Energy and Power Density Optimization for LED Lighting Systems: Chemistry Selection, BMS Integration, and Supplier Qualification

TL;DR In controlled dynamic load testing across three battery chemistries, lithium-ion delivered 94% charge/discharge efficiency and 98% LED brightness stability — outperforming both nickel-cobalt-aluminium (88% / 92%) and sodium-sulfur (85% / 96%) alternatives by a margin that compounds over the…

Read article →Battery Energy and Power Density Optimization for LED Lighting Systems: Chemistry Selection, BMS Integration, and Supplier Qualification

Large-Format LFP Cell Thermal Behavior and Cycle Life Degradation: 280 Ah Field Test Data

TL;DR Large-format LFP cells (280 Ah) exhibit nonlinear thermal behavior under high-rate discharge: 1.0C operation generates 21.64°C temperature rise with concentrated heat flux exceeding 600 W/m² near the negative terminal, while capacity fade accelerates 2.26× at 45°C versus 25°C over…

Read article →Large-Format LFP Cell Thermal Behavior and Cycle Life Degradation: 280 Ah Field Test Data