Pocket separators

Polyethylene pocket separators Sintered PVC/ Rubber separators Cellulosic/ Glass separators Synth, pulp / GM separators VRLA SLI Batteries Total... 

The standard profile for microporous pocket separators exhibits continuous lon-... 

The term leaf separator characterizes the customary stiff version of a starter battery separator that can be inserted individually between the electrodes on automatic stackers, in contrast to pocket separators. This processing requires considerably higher bending stiffness than for pocket separators, calling for thicker backwebs, typically 0.4-0.6 mm (Fig. 18 and 19). 

Cold crank performance, battery life expectancy, and freedom from maintenance are generally co-affected by the separators, whereas ampere-hour capacity remains largely unaffected at a given separator thickness. The properties of the different leaf and pocket separators are compared in Table 10. These typical separator properties (lines 1-4) are reflected in the electrical results of battery tests (lines 5-8). The data presented here are based on the 12 V starter battery standard DIN 43 539-02 tests based on other standards lead to similar results. 

Polyethylene pocket separators Sintered PVC separators Cellulosic separators Cellulosic/ glass mix separators Glass fiber leaf separators... 

The preparation chamber, number I in Figs. 1.2 and 1.3, is equipped with two electron beam evaporators and an effusion cell. A four-pocket mini electron beam evaporator serves for deposition of metals from rods and crucibles from each pocket separately, as well as for codeposition of different combinations of the evaporants. A single-pocket e-beam source is used for deposition of the Mossbauer isotope Fe. An effusion cell Is available for evaporation of rare-earth metals. A precise calibration of the deposition rate with a thickness reproducibility of I A is done by a quartz-balance monitor. The deposited structures can be characterized by low-energy electron diffraction (LEED) and Auger electron spectroscopy (AES). In this chamber, the samples can be cooled down to about 90 K and heated up to 2300 K by a multifunctional manipulator. 

The battery assembly is to a large extent automated. For the electrical separation of positive and negative plates in the sulfuric acid electrolyte, a porous PL foil pocket separates the plates of the same polarity. For the assembly of the cell packages sequences of positive and negative plates are made depending on the desired electrochemical characteristics of the battery. 

Polyethylene pocket separators Sintered PVC/rubber separators Cellulosic/glass separators Synthetic pulp/CM separators VRLASLI batteries Total... 

Separators for Starter Batteries 11.2.2.1 Polyethylene Pocket Separators... 

Practical experience has shown polyethylene pocket separators only in very exceptional cases to be considered as a cause of failure in starter batteries... 

Separators for Lead-Acid Storage Batteries 307 Table 11.5 Microporous polyethylene pocket separators. 

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