Chen Biyao

Chen Biyao

Chen Biyao is a Battery Cell Design & Manufacturing Engineer specialising in cylindrical, prismatic, and pouch cell formats. Her work covers cell dimensions, internal structural design, manufacturing processes, quality control, and the practical selection of cell form factors for battery products.

Battery Cell Format Selection Guide: Dimensional Specifications, Lifecycle Efficiency, and Procurement Criteria for ESS Applications

TL;DR In a full lifecycle carbon accounting study of a ±800 kV UHVDC transmission project spanning approximately 2,000 km, the operations and maintenance phase contributed over 60% of total lifetime carbon emissions — dominated by transmission line losses at a…

Read article →Battery Cell Format Selection Guide: Dimensional Specifications, Lifecycle Efficiency, and Procurement Criteria for ESS Applications

Battery Cell Format Selection Guide: Cylindrical vs. Prismatic vs. Pouch for Pack Design

TL;DR Battery cell format selection directly determines pack energy density, thermal management complexity, and long-term cycle stability — cylindrical 18650/21700 cells achieve volumetric energy densities of 650–700 Wh/L, prismatic cells reach 550–620 Wh/L, and pouch cells can exceed 730 Wh/L…

Read article →Battery Cell Format Selection Guide: Cylindrical vs. Prismatic vs. Pouch for Pack Design

Battery Cell Format Selection Guide: Cylindrical vs. Prismatic vs. Pouch — Technical Procurement Evaluation

TL;DR Battery cell format selection directly determines pack energy density, thermal behavior, and long-term cycle stability — and the tradeoffs between cylindrical, prismatic, and pouch formats are not interchangeable across application types. A buyer who specifies the wrong format at…

Read article →Battery Cell Format Selection Guide: Cylindrical vs. Prismatic vs. Pouch — Technical Procurement Evaluation

Battery Cell Format Selection Guide: Cylindrical, Prismatic, and Pouch Specifications for Compact BESS Procurement

TL;DR Battery cell format selection directly determines pack energy density, thermal management complexity, and long-term cycle stability — and the gap between cylindrical, prismatic, and pouch formats on these parameters is larger than most procurement briefs acknowledge. Specifying the wrong…

Read article →Battery Cell Format Selection Guide: Cylindrical, Prismatic, and Pouch Specifications for Compact BESS Procurement

Lithium-Ion Cell Format Selection for LED Energy Storage: Chemistry, Thermal Performance & Procurement Guide

TL;DR Lithium-ion cells demonstrate94% round-trip efficiency and maintain LED brightness stability within 2.5% variation across3000 cycles, compared to 5.2% drift in nickel-cobalt-aluminum chemistries under equivalent load profiles. Buyers sourcing battery packs for stationary lighting applications should prioritize cell formats with…

Read article →Lithium-Ion Cell Format Selection for LED Energy Storage: Chemistry, Thermal Performance & Procurement Guide

LFP Cell Format Selection for Dual-Voltage Mobile ESS: DC768V/DC380V Architecture Specification Guide

TL;DR An LFP-based dual-stage energy storage architecture — combining a DC768V/60kWh dedicated storage cluster with a DC380V chassis pack — delivers UPS-grade switchover in under 5ms, a threshold that separates genuinely uninterruptible systems from glorified battery backups. For buyers specifying…

Read article →LFP Cell Format Selection for Dual-Voltage Mobile ESS: DC768V/DC380V Architecture Specification Guide

Second-Life EV Battery Procurement: SOH Grading, Traceability, and Echelon Utilization for Stationary Storage

TL;DR Decommissioned EV power batteries retaining above 80% of rated capacity still carry measurable usable charge, but the performance variance within a retired batch is wide enough to make indiscriminate second-life deployment a costly mistake. Buyers sourcing cells or modules…

Read article →Second-Life EV Battery Procurement: SOH Grading, Traceability, and Echelon Utilization for Stationary Storage

Lithium-Ion Battery Thermal Runaway Detection and Fire Suppression in BESS Prefabricated Cabinets

TL;DR Lithium-ion battery thermal runaway initiates at internal temperatures as low as 90°C and escalates through a chain of irreversible chemical reactions; without a multi-stage detection system triggering suppression before the 130°C separator melt threshold, fire propagation across adjacent modules…

Read article →Lithium-Ion Battery Thermal Runaway Detection and Fire Suppression in BESS Prefabricated Cabinets