March 04, 2021, 02:13:53 AM
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Topic: Chemical equation for the lithium iron phosphate battery  (Read 211 times)

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Offline the_last_moose

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Chemical equation for the lithium iron phosphate battery
« on: February 14, 2021, 07:17:17 AM »
The cathode of a lithium ion phosphate battery is made of LiFePO4 and that upon discharging, it is transformed to FePO4. The Anode is made of graphite.

The reactions for the discharge cycle are given as follows:
Cathode: LiFePO4 ⟶ FePO4 + Li+ + e-
Anode: Li+ + C6 +e- ⟶ LiC6

I find this answer difficult to grasp because this shows electrons being accepted in the anode. Anode should be oxidation hence it should show a loss of electrons. Can someone please clarify the reasoning behind these reactions?


Online chenbeier

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Re: Chemical equation for the lithium iron phosphate battery
« Reply #1 on: February 14, 2021, 08:18:32 AM »
It is a Battery not an electrolysis. At plus contact (Anode) electrons go in,
at cathode the negative contact they coming out.
« Last Edit: February 14, 2021, 10:04:15 AM by chenbeier »

Offline AWK

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Re: Chemical equation for the lithium iron phosphate battery
« Reply #2 on: February 14, 2021, 08:40:17 AM »
The oxidation of Fe2+ to Fe3+ is rather related to battery charging.
AWK

Online chenbeier

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