Nano One keeps improving its cobalt-free LNMO battery cells

Nano One keeps improving its cobalt-free LNMO battery cells
Cathodes overview by Nano One
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The Canadian technology company Nano One just released an interesting update about its development of cobalt-free LNMO battery cells.

 

“Nano One has achieved over 500 fast charge and discharge cycles at 45ยฐC,โ€ said Dr. Campbell, โ€œin an innovative battery design that pairs its high-voltage LNM cathode with a conventional electrolyte and a graphite anode. We have also reached 1000 fast charge and discharge cycles at 25ยฐC demonstrating that issues of excessive gassing, anode contamination and poor cycling may be overcome.”

Nano Oneโ€™s proprietary LNM battery enables the benefits of increased voltage, elevated operating temperatures and fast charging, by eliminating failure from gassing in the first few cycles and failure from manganese contamination of the anode in the first 100 cycles.

Dr. Campbell added โ€œNano Oneโ€™s LNM battery innovation breaks through the barriers that have hindered the commercialization of LNM cathode materials in both conventional liquid and advanced solid-state batteries.โ€

LNM, also known as high voltage spinel (HVS), is a cobalt-free, low-cost cathode material that operates at 4.7 volts. This voltage is 25% higher than commercial high nickel cathodes, providing improved efficiency, thermal management and power. Battery pack models suggest that LNM cathodes may reduce costs by over 30% as compared to high nickel NMC materials [Wentker et al, Energies 12 (2019) 504-521].

 

While Nano One is developing a LNMO cathode with spinel structure that operates at high voltage (4,7 V), the LNMO cathode developed by SVOLT maintains a well-organized layered structure even after long term cycling and operates at lower voltage (3,81 V).

 

LNMO layered vs spinel structure
LNMO layered vs spinel structure

 

 

Usually battery cells operating at higher voltages require special electrolytes to prevent excessive cycling degradation, but Nano One seems to have surpassed this problem and is able to use a conventional electrolyte.

Anyway, improvements in cobalt-free cathodes are always important, since they are crucial for electric cars to be able to compete with ICE (internal Combustion Engine) cars in price and production volume. LFMP and LNMO are currently the most promising cobalt-free battery chemistries.

 

 

 

More info:

https://nanoone.ca/news/news-releases/update-on-nano-ones-breakthrough-in-battery-longevity/

https://sci-hub.se/https://sciencedirect.com/science/article/abs/pii/S2211285519300679

https://sci-hub.se/https://researchgate.net/publication/341137439_Co-Free_Layered_Cathode_Materials_for_High_Energy_Density_Lithium-Ion_Batteries

Pedro Lima

My interest in electric transportation is mostly political. Iโ€™m tired of coups and wars for oil. My expectation is that the adoption of electric transportation will be a factor for peace and democracy all over the world.
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Maximilian Holland
Maximilian Holland
4 months ago

Great to hear of further developments in this area. Thanks Pedro!

Pajda
Pajda
4 months ago

Pedro did you know if mentioned 4.7V voltage for LNMO is operating/nominal or fully charged? Thx.

Pedro Lima
Pedro Lima
4 months ago
Reply to  Pajda

Hi Pajda, it’s nominal, they charge at 5 V.
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Barry
Barry
4 months ago

Thank you, Pedro. I hope Tesla and VW take on this chemistry ASAP to bring down pack costs.

Pedro Lima
Pedro Lima
4 months ago
Reply to  Barry

That seems to be the goal.

LFP/LFMP: low cost/long cycle life
LNMO: long range
NCM/NCA/NCMA: mass sensitive
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Lars
Lars
4 months ago

Aren’t we missing information about what fast charging means in this context? I mean fast charging at 1C or at 3C makes a huge difference.

Leo B
Leo B
4 months ago

Report on SVolt’s ‘cobalt-free’ battery day on december 2nd:
ๅฏน้ฃš็‰นๆ–ฏๆ‹‰โ€”โ€”่œ‚ๅทข็”ตๆฑ ๆ—ฅ้ป‘็ง‘ๆŠ€ๅ…จ่ฎฐๅฝ• – ็ฌฌไธ€็”ตๅŠจ็ฝ‘ (d1ev.com)

CEO Yang Hongxin says among other things: “Our product has been tested in one of the largest electric vehicle companies in the United States for three months, and the feedback is very good.” Probably a deal with Ford is in the works.

Great Wall will introduce its own vehicles with cobalt free batteries in june 2021.

Svolt also develops an NCMA-chemistry, dry coating production method, internal short-circuit warning and detection system, graphene silicon anode, 350 kW charging, 7 GWh production in 2021 rising to 40 GWh in 2025, etc. All very interesting.