Leaf battery chemistry

[yopappamon]

Does anyone know what the current battery chemistry is in a Nissan Leaf?

A co-worker has one on order and wanted to talk with me about charging. All I can find in searching is they are calling it Lithium Ion and in the future they might put in a Lithium Manganese.

[liveforphysics]

It's NMC.

Same as every remotely intelligent EV mfg right now.

[dnmun]

only guy i know with a leaf complained bitterly about lack of spare tire from horrible experience in bay area freeway traffic. not range anxiety, but that has him bothered too.

[yopappamon]

It's NMC.

Same as every remotely intelligent EV mfg right now.

Thanks. I guess I know nothing about that chemistry.

[bane77087]

Ya didn't I hear something about they were actually already using someone's nmc patents before being licensed to do so?

[MINIvan]

Actually ALL Lithium batteries are Lithium Ion. The different chemistries combine Lithium with other materials (cobalt, manganese, spinel, iron and others) to make the cathode of the the battery. Have a look at Wikiedia for some good accurate summaries of these.

The Leaf uses Lithium Manganese batteries (LiMnO2, lithium manganese dioxide), one of the most common Lithium battery chemistries.

[grindz145]

Actually ALL Lithium batteries are Lithium Ion. The different chemistries combine Lithium with other materials (cobalt, manganese, spinel, iron and others) to make the cathode of the the battery. Have a look at Wikiedia for some good accurate summaries of these.

The Leaf uses Lithium Manganese batteries (LiMnO2, lithium manganese dioxide), one of the most common Lithium battery chemistries.

LiMN02 is a Primary (non rechargeable) Chemistry

NMC is a slight variant on the LiMn2O4 chemistry.

[amberwolf]

NMC is a slight variant on the LiMn2O4 chemistry.

Usually I see it written out as LiMnNiCo or LiNiMnCo (sometimes either of those with a superscript of 2 at the end).

[boostjuice]

NMC = Li(Ni1/3Co1/3Mn1/3)O2 .....An even mix of Nickel, Manganese and Cobalt oxides




"An extremely regular structure of Li(Ni1/3Co1/3Mn1/3)O2 having alternating slabs of CoO2, NiO2 and MnO2. Oxygen layers are stacked in ABC sequence."

"Li(Ni1/3Co1/3Mn1/3)O2 cathode. The oxygen atoms stack in ABCABC sequence. One of the models proposed by Koyama et al.[23] suggests regularly alternating slabs of CoO2, NiO2 and MnO2 as illustrated below. The same author concluded, based on his calculation [24], a higher potential than LiNiO2, long cycle life and better reversibility than LiNiO2 and LiCoO2 for this structure."

NMC molecular structure.jpg (52.59 KiB) Viewed 1361 times

"An extremely regular structure of Li(Ni1/3Co1/3Mn1/3)O2 having alternating slabs of CoO2, NiO2 and MnO2. Oxygen layers are stacked in ABC sequence. Due to its various possible combinations of the transition metals, Li(Ni1-y-zMnyCoz)O2 has offered a great chance to building better batteries by optimizing its composition."

Taken from: http://lbms03.cityu.edu.hk/oaps/ap2010-4116-lh709.pdf

[yopappamon]

My co worker got his leaf and drove it to work for the first time today. His drive is 42 miles and he was down to 8% left when he got to work. He was driving 75 in the car pool lane for about 25 miles, then 60-65 for the rest. I had to pick him up from the Nissan dealer. He had to go there to use their quick charger or he wouldn't have been able to drive home. Not exactly the performance he had hoped for. He's hoping the it was the heater and seat warmers that reduced his range.

[deronmoped]

My co worker got his leaf and drove it to work for the first time today. His drive is 42 miles and he was down to 8% left when he got to work. He was driving 75 in the car pool lane for about 25 miles, then 60-65 for the rest. I had to pick him up from the Nissan dealer. He had to go there to use their quick charger or he wouldn't have been able to drive home. Not exactly the performance he had hoped for. He's hoping the it was the heater and seat warmers that reduced his range.

Wow, is this Leaf owner clueless. 75 MPH in a E-car, both heaters on. Did he not look into why people don't own these things.

Tell him to stay in the slow lane, put a coat and warm hat on and not use the heaters and he may be able to use it for his commute, if he is lucky.