1. A dry battery electrode comprising:
a. at least one active material;
b. at least one conductive carbon; and
5 c. at least one fluorinated binder;
wherein the active material is selected from natural graphite or a combination
of natural graphite and synthetic graphite, wherein the combination of natural
graphite and synthetic graphite has at least 30% (w/w) of natural graphite with
respect to the total weight of the active material.
10 2. The dry battery electrode as claimed in claim 1, wherein the electrode is an
anode.
3. The dry battery electrode as claimed in claim 1, wherein the conductive carbon
is selected from super P, ketjen black, amorphous carbon, KS6L, graphene,
graphene oxide, carbon black, or combinations thereof.
15 4. The dry battery electrode as claimed in claim 1, wherein the fluorinated binder
is a fibrillating binder or non-fibrillating binder.
5. The dry battery electrode as claimed in claim 1, wherein the fluorinated binder
is selected from of polytetrafluoroethylene (PTFE), fluoroethylene vinyl ether
(FEVE), fluorinated ethylene propylene (FEP), polyvinylidene fluoride
20 (PVDF), or combinations thereof.
6. The dry battery electrode as claimed in claim 1, wherein the fluorinated binder
is selected from polytetrafluoroethylene (PTFE), polyvinylidene fluoride
(PVDF), or combinations thereof.
7. The dry battery electrode as claimed in claim 1, wherein the active material is
25 in a weight range of 97 to 98% with respect to total weight of the electrode; the
conductive carbon is in a weight range of 0.5 to 1% with respect to total weight
of the electrode; and the binder is in a weight range of 0.5 to 2% with respect to
total weight of the electrode.
8. The dry battery electrode as claimed in claim 1, wherein the electrode exhibits
30 a peel strength in a range of 0.008 kgf to 0.5 kgf; a through plane conductivity
28
in a range of 1.45 to 5.8 mS/cm; a tensile strength in a range of 220 to 400
kgf/cm2
; and a capacity in a range of 350 to 364 mAh/g.
9. A process to prepare the dry battery electrode as claimed in claim 1, said process
comprising the steps of:
5 i) mixing at least one active material, at least one conductive carbon, and at
least one fluorinated binder to obtain a powder mixture;
ii) shear mixing the powder mixture at a speed in a range of 1000 to 5000 rpm,
at a temperature in a range of 50 to 100°C to obtain a dough; and
iii) cooling the dough to a temperature in a range of 15-30°C to obtain the
10 electrode;
wherein the electrode exhibits a peel strength in a range of 0.008 kgf to 0.5
kgf; a through plane conductivity in a range of 1.45 to 5.8 mS/cm; a tensile
strength in a range of 220 to 400 kgf/cm2
; and a capacity in a range of 350
to 364 mAh/g.
15 10. The process as claimed in claim 8, wherein mixing is carried out at a stirring
speed in a range of 1000 to 3000 rpm for a time period in a range of 10 minutes
to 3 hours.