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引言
锂电池防爆盖:
- 自产五金结构件及注塑结构件,各部件匹配良好。
- 内阻稳定<1mΩ。
- 压力平衡断开压力10-15Mpa。
- 开盖压力稳定在2.0-2.8Mpa;防爆性能优异稳定。
- 自动化工艺控制生产,内外涂覆高科技密封胶,气密性优异。
- 密封圈的形状设计与电池钢壳的滚槽完美贴合,电池密封平滑紧密,不易变形,无泄漏。
- 产品环保符合ROHS标准。
细节与零件





技术规格
| 产品成分 | 名称 | 电池壳18650防爆型 |
| 装配零件 | 钢壳 | 18.0(D)*67(H)*0.25(T)mm |
| 防爆盖 | 3.7(T)*17.3(D)mm | |
| 压力限制 | 18-22MPa |
| 技术指标 26650 | |
| 盖帽PTC | 防爆盖 |
| 钢壳、盖帽材质 | 镀硝A3钢 |
| 密封O型圈和垫圈材料 | 尼龙 |
| 垫圈 | PET |
| 外壳尺寸(直径x高度) | 26mm(OD)x25.5mm(ID)x68mm(H) |
| 盖帽尺寸(直径x高度) | 25.5mm(D)x5mm(H) |
| 上绝缘垫圈尺寸(直径x厚度) | 24.5mm(D)x0.25mm(T) |
| 下绝缘垫圈尺寸(直径x厚度) | 24.5mm(D)x0.25mm(T) |
| 重量 | 18.75克/件 |
尺寸从18650增大到21700,其优点如下:
- 能量密度适当增加时,可选用常规材料,性能稳定,性价比高;
- 可适当进行多极耳结构设计,降低内阻;
- 在相同能量密度下,可选用快充石墨,提高快充性能;
- 适当增加直径和高度,可获得更有效的体积。
- 单体电池容量增大,辅助组件比例降低,降低PACK成本。
优势
- 抑制电池极化,降低热效应,提高倍率性能;
- 锂离子电池外壳大大降低了电池内阻,显著减小了配置过程中的动态内阻增加;
- 提高电池的一致性和新增加的配置寿命;
- 锂离子电池外壳提高了活性材料与集流体之间的附着力,大大降低了极耳的制造成本;
- 保护集流体不被电解液腐蚀;
- 提高锂离子电池的耐高低温性能,提高锂离子磷酸铁锂和锂钛酸锂材料的加工性能。
FAQ
什么是电池盒?
使用电池盒有哪些好处?
使用电池盒时应遵循哪些安全预防措施?
电池外壳垫圈应考虑哪些因素?
电池材料主要有哪些类型?
电池外壳密封垫的作用是什么?
电池材料有哪些应用?
什么是锂空气电池盒?
电池材料如何提高电池性能?
如何为特定应用选择纽扣电池盒?
聚乙烯隔膜在锂离子电池中的作用是什么?
为什么导电碳布/纸/毡在电池应用中非常重要?
锂电池使用铝塑软包装薄膜有哪些优势?
钴酸锂材料如何提高电池性能?
电池内阻测试仪的功能是什么?
为什么镍铝片在电池制造中很重要?
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