Page 87 - Handbook of Battery Materials

2.5 Lithium Primary Batteries 53

−
Cathode reaction: (CF) n + ne → nC + nF − (2.14)
Overall battery reaction: nLi + (CF) → nC + nLiF (2.15)
n

The general advantage of the Li–(CF) n batteries are the same as those of Li–MnO 2
batteries.
They may be classified by their structure, as coin, cylindrical, and pin types.
Tables 2.5–2.7 respectively show their specifications. Applications of Li–(CF) n
batteries as power sources are spreading from professional and business uses,
such as in wireless transmitters and integrated circuit (IC) memory preservation,
to consumer uses in electronic watches, cameras, calculators, and the like.
Pin-type batteries are used for illumination-type fishing floats with a light-emitting
diode. Coin-type batteries, which have a stable packing insulation, separator,
and electrolyte for high-temperature usage, are applicable at temperatures as
◦
high as 150 C. The packing insulation and separator are made of special-use
Table 2.5 Specifications of coin-type lithium–carbon monofluoride batteries.

Model Nominal Nominal Discharge current Dimensions Weight
voltage capacity (mA) (mm) (g)
(V) (mAh)
Maximum Standard Diameter Height

BR12l6 3 25 5 0.03 12.5 1.60 0.6
BR1220 3 35 5 0.03 12.5 2.00 0.7
BR1225 3 48 5 0.03 12.5 2.50 0.8
BR16l6 3 48 8 0.03 1.60 1.60 1.0
BR1632 3 120 8 0.03 16.0 3.20 1.5
BR2016 3 75 10 0.03 20.0 1.60 1.5
BR2020 3 100 10 0.03 20.0 2.00 2.0
BR2032 3 190 10 0.03 20.0 3.20 2.5
BR2320 3 110 10 0.03 23.0 2.00 2.5
BR2325 3 165 10 0.03 23.0 2.50 3.2
BR2330 3 255 10 0.03 23.0 3.00 3.2
BR3032 3 500 10 0.03 30.0 3.20 5.5

Table 2.6 Specifications of cylindrical lithium–carbon monofluoride batteries.

Model Nominal Nominal Discharge current Dimensions Weight
voltage capacity (mA) (mm) (g)
(V) (mAh)
Maximum Standard Diameter Height

BR–2/3A 3 1200 250 2.5 17.0 33.5 13.5
BR–A 3 1800 250 2.5 17.0 45.5 18.0
BR–C 3 5000 300 150.0 26.0 50.5 42.0