Water penetration induces micro-shorts between electrodes. Lab tests show a 38% drop in internal impedance and a 5x increase in self-discharge rates for water-exposed batteries, severely compromising operational stability.
Humidity accelerates corrosion of current collectors, with aluminum foil corrosion rates reaching 0.15mm/year. Unprotected batteries in 90% humidity environments suffer 60% cycle life degradation.
Water reacts with LiPF₆ electrolyte to generate HF acid (reaction: LiPF₆ + H₂O → LiF + PF₅ + HF), causing cell swelling (>15% expansion) and thermal runaway risks (T ≥ 150°C).
Applications: Compact devices (radios, PDAs, security gear)
Parameters: 20kHz vibration welding, seam strength ≥15N/mm²
IP Rating: IP67 (1m depth, 30 mins)
Advantages: 0.3mm weld width optimizes sealing and space efficiency
Applications: Underwater robots, deep-sea detectors, tropical equipment
Process:
Primary potting: Vacuum-assisted epoxy resin filling (voids <0.05%)
Secondary potting: Pressure-compensated silicone injection
Validation: Passes 72hr 50m depth (5bar) simulation
Applications: Power batteries, outdoor ESS
Components:
√ Fluorosilicone gasket (compression set <10%)
√ Dual-layer UV-cured adhesive (bonding strength ≥8MPa)
IP Rating: IP68 certified (-40°C to 85°C operation)
Helium mass spectrometry (sensitivity: 1×10⁻⁷ mbar·L/s)
Salt spray (5% NaCl, 96hr)
Thermal shock (-40°C ↔ 85°C, 50 cycles)
High-pressure waterjet (15MPa, 30s)
UL1642 / UL2054 / IEC62133 compliance
Marine Exploration: 48V 3000mAh battery for ROVs (72hr @100m depth)
Industrial Inspection: IP69K-rated batteries for 80°C steam cleaning
Military-Grade ESS: MIL-STD-810G compliant systems
Gushine offers full-custom solutions from cell selection (LFP/NMC/polymer) to structural design. Our engineering team simulates operational conditions (depth, temperature, vibration) for optimal reliability.