PPRuNe Forums - View Single Post - 787 Batteries and Chargers - Part 1
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Old 27th Feb 2013, 06:18
  #824 (permalink)  
deptrai
 
Join Date: Nov 2009
Location: flying by night
Posts: 504
LiCoO2 is mature technology. These cells are derated to 4.025V EOC and ultra reliable.
Agreed, the cells should be very reliable. According to GS Yuasa Technologies,

"[GYT] fixed their chemical design at 1999 and did not change. GYT large Li-ion cells [...] have never showed internal short accident through more than 10 years production. (>5000 cells)"

(from a sales pitch to NASA https://batteryworkshop.msfc.nasa.go...Ion_TInoue.pdf - which also shows the differences between "aerospace-grade" and typical "commercial" Sony cells. These GS Yuasa cells are certainly well engineered).

Last edited by deptrai; 27th Feb 2013 at 06:24.
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