Glass, in particular solder glass or fusible glass

Abstract

A glass, for example a glass solder, includes the following components in mole percent (mol-%): P 2 O 5 37-50 mol-%, for example 39-48 mol-%; Al 2 O 3 0-14 mol-%, for example 2-12 mol-%; B 2 O 3 2-10 mol-%, for example 4-8 mol-%; Na 2 O 0-30 mol-%, for example 0-20 mol-%; M 2 O 0-20 mol-%, for example 12-20 mol-%, wherein M is, for example, K, Cs or Rb; Li 2 O 0-42 mol-%, for example 0-40 mol-% or 17-40 mol-%; BaO 0-20 mol-%, for example 0-20 mol-% or 5-20 mol-%; and Bi 2 O 3 0-10 mol-%, for example 1-5 mol-% or 2-5 mol-%.

What is claimed is: 
     
         1 . A feed-through, comprising:
 a glass having a composition including in mole percent (mol-%):
 P 2 O 5  35-50 mol-%; 
 Al 2 O 3  0-14 mol-%; 
 B 2 O 3  2-10 mol-%; 
 Na 2 O 0-30 mol-%; 
 M 2 O 0-20 mol-%, wherein M is one of potassium, cesium and rubidium; 
 Li 2 O 0-42 mol-%; 
 BaO 0-20 mol-%; and 
 Bi 2 O 3  1-10 mol-%. 
   
     
     
         2 . The feed-through according to  claim 1 , the glass having a composition including:
 P 2 O 5  39-48 mol-%;   Al 2 O 3  2-12 mol-%;   B 2 O 3  4-8 mol-%;   Na 2 O 0-20 mol-%;   M 2 O 12-19 mol-%;   Li 2 O 0-40 mol-%;   BaO 5-20 mol-%; and   Bi 2 O 3  1-5 mol-%.   
     
     
         3 . The feed-through according to  claim 2 , the glass composition including:
 Li 2 O 17-40 mol-%; and   Bi 2 O 3  2-5 mol-%.   
     
     
         4 . The feed-through according to  claim 1 , wherein the glass is a solder glass. 
     
     
         5 . The feed-through according to  claim 1 , the glass including at most 35 mol-% Li 2 O. 
     
     
         6 . The feed-through according to  claim 1 , the glass including at least 17 mol-% Li 2 O. 
     
     
         7 . The feed-through according to  claim 1 , the glass including 4-8 mol-% Bi 2 O 3 . 
     
     
         8 . The feed-through according to  claim 1 , the glass being lead free except for contaminants. 
     
     
         9 . The feed-through according to  claim 1 , the glass including at most 20 mol-% Na 2 O. 
     
     
         10 . The feed-through according to  claim 1 , the glass including at least 2 mol-% Bi 2 O 3 . 
     
     
         11 . The feed-through according to  claim 1 , the glass having a coefficient of expansion α at a temperature in a range of between 20° C. and 300° C. of >14×10 −6  per degree Kelvin (K). 
     
     
         12 . The feed-through according to  claim 11 , the glass having a coefficient of expansion α at a temperature in a range of between 20° C. and 200° C. being in a range of between 13×10 −6 /K and 20×10 −6 /K. 
     
     
         13 . The feed-through according to  claim 11 , said coefficient of expansion α at said temperature in said range of between 20° C. and 300° C. being in a range of between 15×10 −6 /K and 25×10 −6 /K. 
     
     
         14 . The feed-through according to  claim 1 , the glass having a melting temperature of <600° C. 
     
     
         15 . The feed-through according to  claim 1 , the glass having a hemispherical temperature in a range of between 500° C. and 650° C. 
     
     
         16 . The feed-through according to  claim 1 , the glass having a composition such that the glass can be soldered at normal atmosphere with at least one of aluminum and copper. 
     
     
         17 . The feed-through according to  claim 1 , the glass having a high chemical resistance to electrolytes, the electrolytes being at least one selected from the group consisting of non-aqueous electrolytes, carbonates, carbonate mixtures and LiPF 6 . 
     
     
         18 . The feed-through according to  claim 1 , the feed-through being for a device. 
     
     
         19 . The feed-through according to  claim 18 , wherein said device is a storage device. 
     
     
         20 . The feed-through according to  claim 19 , wherein said storage device is a lithium-ion accumulator. 
     
     
         21 . The feed-through according to  claim 20 , wherein said lithium-ion accumulator is a lithium-ion battery. 
     
     
         22 . A device, the device comprising:
 a feed-through including a glass having a composition including in mole percent (mol-%):
 P 2 O 5  35-50 mol-%; 
 Al 2 O 3  0-14 mol-%; 
 B 2 O 3  2-10 mol-%; 
 Na 2 O 0-30 mol-%; 
 M 2 O 0-20 mol-%, wherein M is one of potassium, cesium and rubidium; 
 Li 2 O 0-42 mol-%; 
 BaO 0-20 mol-%; and 
 Bi 2 O 3  1-10 mol-%. 
   
     
     
         23 . The device according to  claim 22 , the device being a storage device. 
     
     
         24 . The device according to  claim 23 , wherein said storage device is an accumulator. 
     
     
         25 . The device according to  claim 24 , wherein said storage device is a lithium-ion accumulator. 
     
     
         26 . The device according to  claim 25 , wherein said lithium-ion accumulator is a lithium-ion battery.