Technique Services
Original Technology Breakthrough & Preparation Bottleneck Solution for Custom Li-Po Lithium Battery
Original Technology Breakthrough & Preparation Bottleneck Solution for Custom Li-Po Lithium Battery
SUNHE independently developed 5 pioneering core technologies to break industry technical monopoly, widely applied in curved, ultra-thin, special-shaped custom lithium polymer battery manufacturing.
Break the limit of conventional electrolyte’s narrow working range, expand stable operating temperature from -40℃~+60℃. Realize over72% capacity retention under minus 40℃ environment, solve low-temperature power drop trouble for wearable & medical batteries.
Domestic original one-step molding process for curved & irregular LiPo cells, eliminate secondary cutting waste, reduce 18% production cost, realize ultra-narrow edge sealing below 0.25mm for smart ring curved battery.
Independent modified coating formula for 4.2V~4.52V high energy density cells, lift single cell energy density by 27% vs ordinary LCO material, core tech of our high-voltage customized battery series.
Patented dry electrode coating solves ultra-thin pole piece cracking & uneven coating bottleneck, support cell thickness down to 0.3mm, core manufacturing tech for ultra-thin wearable lithium battery.
Break Japan & Korea imported aluminum plastic film monopoly, self-modified composite material reduce cell swelling rate below 2.2% after 500 cycles, solve soft package bulking industry pain point.
Target six core industry manufacturing pain points, SUNHE’s customized process overcome long-existing production technical bottlenecks of custom Li-Po battery industry.
Adopt segmented temperature-controlled hot pressing process, solve micro leakage for below 0.4mm ultra-thin cell sealing, leakage rate drop from 8.7% to under 0.3%.
Custom modular positioning fixture + visual alignment system, realize automatic lamination for random curved special-shaped cells.
Gradient compaction pole piece process optimize lithium ion transmission path, restrain dendrite precipitation under 5C high fast charging condition.
Full-process digital parameter locking system, control capacity tolerance within ±2.5% for different customized size mass production.
Ultra-high purity electrolyte purification technology, monthly self-discharge rate ≤1.8%, fully meet long-term standby demand of implant & portable medical equipment.
Multi-stage gradual rolling warm forming process eliminate shell crack, realize stable mass production of circular soft pack lithium battery.
From early-stage R&D simulation to post-sale cycle testing, one-stop technical support for client customized battery projects.
3D structural simulation, electrochemistry parameter pre-calculation, free preliminary scheme optimization before prototype production.
Quick prototype trial production within 3~7 working days, adjust formula & structure according to client test feedback.
Production line parameter debugging, fixture customization, stable transition from small sample to bulk production.
UN38.3, UL, CE, high-low temp aging & cycle reliability test, assist customer certification application.
Quantifiable technical indicators after years of R&D breakthrough
Core Invention Patents
Stable Working Temp Range
Minimum Ultra-thin Cell Thickness
Max Energy Density Promotion
Electrochemical Comprehensive Test Cabinet
High & Low Temperature Alternate Test Chamber
Cell Puncture & Extrusion Safety Tester