隔板窜位致使正负极板相连。
2. Diaphragm channeling causes positive and negative plates to connect.
3、极板上活性物质膨胀脱落，因脱落的活性物质沉积过多，致使正、负极板下部边缘或侧面边缘与沉积物相互接触而造成正负极板相连。
3. Expansion and exfoliation of active substances on the plate lead to contact between the bottom edge or side edge of the positive and negative plates due to excessive deposition of the exfoliated active substances.
4、导电物体落入电池内造成正、负极板相连。
4. The conductive object falls into the battery and connects the positive and negative plates.
5、焊接极群时形成的"铅流"未除尽，或装配时有"铅豆"在正负极板间存在，在充放电过程中损坏隔板造成正负极板相连。
5. Lead current formed during welding pole group is not eliminated, or lead beans exist between positive and negative plates during assembly, and the positive and negative plates are connected by damaging the partition during charging and discharging.
铅酸蓄电池短路的处理方法
Treatment of Short Circuit of Lead-acid Battery
下面主要就充电电流过大，单只电池充电电压超过了2.4V，内部有短路或局部放电、温升超标、阀控失灵现象造成的铅酸蓄电池短路进行分析，总结出如下铅酸蓄电池短路的处理方法。
The following is mainly about the analysis of short circuit of lead-acid batteries caused by excessive charging current, single battery charging voltage exceeding 2.4V, internal short circuit or partial discharge, temperature rise exceeding standard, valve-controlled failure. The treatment methods of short circuit of lead-acid batteries are summarized as follows.
1. Reduce the charging current, reduce the charging voltage and check whether the safety valve body is blocked. Charge and discharge regularly. In UPS power supply system, the floating charge voltage and discharge voltage of lead-acid batteries have been adjusted to the rated value when they are out of the factory. The discharge current increases with the increase of the load. The load should be adjusted reasonably in use, such as controlling the number of electronic devices such as computers.