To provide a separator for a sealed lead-acid battery excelling in short-circuiting resistance (dendrite short resistance) and also excelling in tensile strength, a cushioning property, an electrolyte leakage property, and the volume of electrolyte retention, in a separator for a sealed lead-acid battery formed of a tiny glass fiber mat; and a sealed lead-acid battery.
In this separator for a sealed lead-acid battery formed of a tiny glass fiber mat having an average fiber diameter not larger than 1.5 μm, a porous coating of lead powder-impermeable and electrolyte ion-permeable silica particles is formed on one surface of the tiny glass fiber mat, and the short circuiting time thereof is not smaller than 150% (standard sample comparison).
COPYRIGHT: (C)2009,JPO&INPIT
Masashi Sugiyama
| JP2005108710A | ||||
| JP2003308818A |
Shinichi Abe
Yuji Tsujida
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