battery machine and materials solution

Pinery Gong

Pinery Gong, Principal Engineer at TOB NEW ENERGY
Gong Pinery
Ingegnere capo
XIAMEN TOB NEW ENERGY TECHNOLOGY Co., Ltd.
Pinery Gong è una batteriaingegnere di processo e resa per l'assemblaggio. Attraverso celle a sacchetto, a lattina d'acciaio, a guscio prismatico di alluminio e celle di accumulo di energia, il suo lavoro ha costantemente ridotto i tassi di difettosità da punti percentuali a parti per milione: perdite daDal 6% a 60 ppm, frattura dell'elettrodo daDal 10% a 80 ppm, difetti della scheda daDal 20% a 500 ppmHa aumentato la resa del PACK dadall'85% al 99%, ha sollevato l'output PACK daDa 500 a 15.000 unità per turnoe ha generato risparmi sui costi annualioltre 5 milioni di CNYHa creato e guidato team di processo composti da un massimo di 40 ingegneri.

In sintesi

60 ppmTasso di difetti da perdite, in calo rispetto al 6%
99%Resa PACK, in aumento rispetto all'85%
30×aumento della produzione PACK per turno
Oltre 5 milioni di CNYRisparmio sui costi annuali conseguito
40Il più grande team di processo creato e guidato

Storico di riduzione della resa e dei difetti

Ogni cifra riportata di seguito è associata a un datore di lavoro e a un periodo specifici. I tassi di difettosità sono espressi con la stessa modalità di misurazione originale: percentuali laddove il punto di partenza era espresso in percentuale, e ppm laddove il risultato ha raggiunto le parti per milione.

Celle di consumo e celle a lattina d'acciaioWanxiang Technology (Microvast Electronics) · Luglio 2020 – Novembre 2022 · Team di processo composto da 15 persone

metrico Prima Dopo Nota
Difetto di perdita di elettroliti 6% 60 ppm Programma di miglioramento dedicato a una modalità di guasto fondamentale
Difetto di frattura dell'elettrodo 10% 80 ppm Analisi delle cause profonde relative alla gestione e all'avvolgimento degli elettrodi
Tasso complessivo di superamento della cella 75% 90% Resa complessiva lungo l'intero processo produttivo
tasso di superamento del PACK 85% 99% Linea di assemblaggio dei pacchi
Produzione PACK per turno 500 unità 15.000 unità Implementazione completa dell'automazione e iterazione del processo
Costo totale della manodopera Linea di base -20% Fusione delle operazioni, ottimizzazione dei processi, razionalizzazione del personale

Celle di potenza e di accumulo con guscio prismatico in alluminioGeely Technology Lixin Energy · Novembre 2022 – Aprile 2024 · Responsabile del dipartimento di processo, team di 40 persone

metrico Prima Dopo Nota
Tasso di cortocircuito della cella al manganese NCM 10% 0,5% Controllo dell'umidità in officina, riprogettazione della struttura curva, ammodernamento delle attrezzature.
Difetto di disallineamento del separatore 6% 0,2% Modifica sistematica dei processi e delle attrezzature
Tassi di successo dei progetti (programmi multipli) 70–88% 93–95% DX45AH, NCM40, Geely G2, accumulo da 50AH — campione B/C per SOP
Costo di produzione annuale Linea di base -5 milioni + CNY Risparmio cumulativo derivante dal miglioramento sistematico dei processi e delle attrezzature.
dimensione del team di processo 10 40 Ho ricostruito da zero l'organizzazione dei processi del sito di Zhenjiang.

Celle di potenza prismatiche: messa in servizio della nuova lineaCITIC Lixin Energy · 2017.04 – 2020.07 · Principal Process Engineer, 30-person team

Metric Before After Note
Core process pass rates Below target ≥99% Across all operations after winding, assembly and filling optimisation
Line capacity Baseline ≈2× 4 GWh Korean-imported automated line, commissioning through to volume

3C pouch cellsZhongshan Tianmao Battery · 2012.03 – 2015.12 · and TCL Jinneng · 2009.07 – 2012.02

Metric Before After Note
Tab defect rate 20% 500 ppm TCL Jinneng — tab defects and cell surface deformation
Process cycle time Baseline −25% Baking, filling and hot-press optimisation
Material cost Baseline −5% Material loss system optimisation
Core operation pass rates Variable ≥99% stable Zhongshan Tianmao — parameter iteration and equipment upgrade

Career Timeline

  • present·XIAMEN TOB NEW ENERGY TECHNOLOGY Co., Ltd.

    Principal Engineer— battery assembly process engineering and production line technical support.

  • 2024.04 – 2024.07·Envision AESC

    Principal Process Development Expert. Product engineering for prismatic and pouch cell assembly, new process transfer to mass production, and process enablement across global manufacturing sites. Delivered the assembly BOM, process specifications, PFMEA and control plans; led C-sample pilot to mass-production conversion. Built a unified assembly process library across sites, and delivered three improvement programmes at the Jiangyin site covering Lyric line equipment damage, stacking efficiency and aluminium-shell assembly efficiency.

  • 2022.11 – 2024.04·Geely Technology Lixin Energy

    team 10 → 40 Process Department Head. Full process technical management for prismatic aluminium-shell cells. Rebuilt the Zhenjiang site process organisation from scratch, established role definitions, assessment mechanisms and workflows to meet automotive OEM audit standards. Led DX45AH, NCM40, Geely G2 and 50AH storage programmes from B/C sample through to SOP.

  • 2020.07 – 2022.11·Wanxiang Technology (Microvast Electronics)

    15-person team Senior Process Manager. Steel-can and pouch cell process optimisation, automated line rollout, and customer quality assurance. Delivered dozens of new products from pilot to mass production for customers includingOPPO and Amazon. Built the factory efficiency accounting and trial-production management systems.

  • 2017.04 – 2020.07·CITIC Lixin Energy

    30-person team Principal Process Engineer. Built the first full set of assembly-section process documentation from nothing — parameter standards, PFMEA, SOPs and control plans. Full participation in acceptance, commissioning and production ramp of a 4 GWh Korean-imported automated line. Developed winding core-extraction improvements, multi-tab bending and electrolyte wetting optimisation.

  • 2016.10 – 2017.04·Chilwee Chuangyuan Group

    Senior Process Engineer. Participated in the setup of the Fourth Business Division — factory planning, process route design and early process documentation. Led improvement of secondary sealing, formation and packaging operations.

  • 2012.03 – 2015.12·Zhongshan Tianmao Battery

    Principal Process Engineer. 3C pouch cell process development across electrode preparation, winding, packaging and electrolyte filling. Built the full MI process documentation system from scratch and introduced over one hundred new models into mass production. Led adoption of ultra-thin separator, aluminium-plastic film and tab adhesive materials.

  • 2009.07 – 2012.02·TCL Jinneng Battery

    PE Process Engineer. Pouch cell assembly process maintenance, defect closure and automation upgrade. Led rollout of automated winding equipment.

Technical Focus

  • ▸Battery assembly process — winding, stacking, electrolyte filling, sealing, formation
  • ▸Yield engineering — root-cause analysis and closed-loop correction of short circuit, leakage, internal resistance and dimensional defects
  • ▸Process documentation systems — process specifications, PFMEA, SOP, control plans, standard work hours
  • ▸New line commissioning — equipment requirement definition, technical agreement review, FAT/SAT acceptance, jig and fixture validation
  • ▸Industrial engineering — line layout, takt time, line balancing, capacity debottlenecking
  • ▸Multi-site process standardisation and technical library development
  • ▸Team building — process organisation design, role definition and assessment systems
PFMEA 8D SOP / Control Plan FAT / SAT IE / Line Balancing CPK NPI Cost Reduction

Frequently Asked Questions

What kind of yield problems does Pinery Gong work on?

Assembly-section defects that sit between process and equipment: electrolyte leakage, internal short circuit, electrode fracture, tab defects, separator misalignment, internal resistance and dimensional deviation. The working method is root-cause analysis with closed-loop correction across winding, stacking, electrolyte filling, sealing and formation — typically taking a defect mode from percentage-level down to parts per million rather than trimming it by a few points.

How was electrolyte leakage reduced from 6% to 60 ppm?

Through a dedicated improvement programme on a core failure mode at Wanxiang Technology (Microvast Electronics), 2020–2022, leading a 15-person process team. The same programme took electrode fracture from10% to 80 ppmand overall cell pass rate from75% to 90%. Performed at that employer and presented as career history, not as a performance guarantee for a new project.

How was PACK output raised from 500 to 15,000 units per shift?

A thirty-fold increase achieved through full automation rollout combined with process iteration, at Wanxiang Technology (Microvast Electronics). In the same period PACK pass rate moved from85% to 99%and total labour cost fell20%through operation merging, process optimisation and headcount rationalisation. Career history at that employer.

What experience does he have with prismatic aluminium-shell cells?

As process department head at Geely Technology Lixin Energy (2022–2024) he held full process technical management for prismatic aluminium-shell power and storage cells. NCM-manganese cell short-circuit rate fell from10% to 0.5%through workshop humidity control, bend structure redesign and equipment upgrade; separator misalignment fell from6% to 0.2%. He led the DX45AH, NCM40, Geely G2 and 50AH storage programmes from B/C sample through to SOP, lifting project pass rates from 70–88% to93–95%. Career history at that employer.

Has he commissioned new production lines?

Yes. At CITIC Lixin Energy (2017–2020) he took full part in acceptance, commissioning and production ramp of a4 GWh Korean-imported automated line, roughly doubling line capacity, and built the first complete set of assembly-section process documentation from nothing — parameter standards, PFMEA, SOPs and control plans. Core process pass rates reached99% or aboveafter winding, assembly and filling optimisation. His new-line work covers equipment requirement definition, technical agreement review, FAT/SAT acceptance and jig validation. Career history at that employer.

Can he build a process organisation, not just fix defects?

Yes. At Geely Technology Lixin Energy he rebuilt the Zhenjiang site process organisation from scratch, growing the team from10 to 40 engineersand establishing role definitions, assessment mechanisms and workflows to meet automotive OEM audit standards. At Envision AESC he built a unified assembly process library across global manufacturing sites, delivering assembly BOM, process specifications, PFMEA and control plans. Career history at those employers.

Which cell formats has he worked across?

Four: 3C pouch cells (TCL Jinneng and Zhongshan Tianmao, where tab defects fell from20% to 500 ppme oltre cento nuovi modelli sono stati introdotti nella produzione di massa), celle in acciaio e per il settore consumer (Wanxiang, che fornisce prodotti a clienti tra cui OPPO e Amazon), celle di potenza e di accumulo prismatiche con guscio in alluminio (Geely Lixin, CITIC Lixin) e assemblaggio di celle prismatiche a sacchetto presso Envision AESC. Storia professionale presso i datori di lavoro menzionati in questa pagina.

risolvere un problema di resa

Perdite, cortocircuiti, difetti dimensionali o problemi di portata della linea: descrivi il sintomo e il team di ingegneri ti aiuterà a diagnosticarlo.

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