Product产品
Lithium Battery PVC Heat Shrink Sleeve / Lay-flat Heat Shrink TubePVC电池热缩套管
PVC lay-flat tube, delivered in folded flat width. Customers cut the required length, sleeve it onto the battery pack and heat shrink directly — no secondary processing needed. It is the most popular finished product for overseas PACK buyers.PVC 对折扁筒膜，以扁折宽度整卷出货；客户裁切后直接套入电池组加热收缩，无需二次加工，是海外 PACK 客户采购最多的成品。
Core selling points核心卖点
- Finished lay-flat sleeve — cut and use directly, saves the tube-making process成品对折套管，收货裁切即可使用，省去制筒工序
- Low-temperature smooth shrink, tight wrapping, resists lifting低温顺滑收缩，包覆紧密，不易起翘
- High insulation & flame retardancy, isolates cells and avoids short-circuit risk高绝缘阻燃，隔离电芯，规避短路风险
- Full size range from 18650 cell packs to large ESS packs规格齐全，覆盖 18650 电池组到大储能电池包
- Smooth surface; standard blue is the recognized lithium-battery look表面光滑，蓝色为锂电行业标准外观，辨识度高
- Fixed-length cutting and printed warning marks & parameters available支持定长裁切、印刷警示标识与参数
- Fits small-batch manual prototyping and mass automatic lines适合小批量打样，也适配自动化流水线批量封装
- Factory-direct; matching flat-film substrate can be supplied together源头工厂直供，可配套同规格平膜基材
Basic properties & specifications基础属性与规格参数
| Property项目 | Value参数 |
|---|---|
| Raw material原料 | Modified insulating PVC heat-shrink compound 改性绝缘 PVC 热缩料 |
| Form形态 | Folded lay-flat hollow tube 对折扁筒，中空套管 |
| Lay-flat width扁折宽度 | 20–600 mm, from single cell to large ESS pack 20–600mm，覆盖单串小电池到大容量储能包 |
| Thickness (pre-shrink)收缩前厚度 | 0.06–0.20 mm; mainstream 0.10 / 0.12 / 0.15 mm 0.06–0.20mm，主流 0.10、0.12、0.15mm |
| Shrink temperature收缩温度 | 80–100 °C 80–100℃ |
| Shrinkage收缩率 | TD 40–48%, MD ≤12% (strict MD to keep sleeve length) 横向 40–48%，纵向 ≤12%（严控纵向防套长变短） |
| Working temperature使用耐温 | -40 °C ~ +105 °C, rated 300 V -40℃~105℃，额定耐压 300V |
| Color颜色 | Blue (industry standard), black, clear, red, orange; custom 蓝色（行业通用）、黑、透明、红、橙，支持专色 |
| Flame retardant阻燃等级 | VW-1 optional on upgraded version 升级款可选 VW-1 |
| Edge断口 | Clean cut, no burr, no hole or air leakage 平整无毛刺，无破洞、无漏气 |
Product advantages产品优点
- Low threshold: PACK shops only need a cutter, no tube-making machine — friendly for SME assemblers使用门槛低：PACK 厂仅需裁切设备，无需制筒机，适配中小组装厂
- High size tolerance: ample transverse shrink grips even with minor outer-diameter deviation尺寸容错高：横向收缩充足，电池组外径轻微公差依旧包紧
- Stable storage: no self-shrink at normal room temperature仓储稳定：常温存放不会提前自收缩
- Dust & moisture protection: forms a sealed protective layer after shrink防尘防水：收缩后形成保护层，隔绝水汽粉尘
- Standard color: blue is preferred by overseas lithium buyers and eases QC grouping配色标准化：蓝色是海外锂电客户首选，方便质检分组
- Flexible cutting: full lay-flat rolls or pre-cut short pieces on request裁切灵活：可发整卷扁筒，也可切成固定长度小段
- Mature supply chain: substrate makers supply master rolls, sleeve makers finish the tube供应链成熟：基材厂供母卷，套管厂完成制筒加工
Application scenarios适用场景
- 18650, 21700, 26650 cylindrical PACK for power tools, vacuum cleaners, power banks18650、21700、26650 圆柱电池 PACK（电动工具、扫地机、充电宝）
- E-bike lithium packs, small ESS packs, outdoor power-station packs两轮车锂电池组、小型储能包、户外电源电池组
- Insulation coating of capacitors, inductors and other electronic components电容、电感等电子元器件绝缘包覆
- Battery repair and second-hand battery refurbishment re-wrapping电池维修、二手电池翻新包覆
Tell us your cell size, pack dimensions and artwork告知电芯尺寸、电池组尺寸与印刷稿
Get a written quotation within 1 business day. Free samples, freight collect.1 个工作日内出具书面报价。样品免费，运费到付。