Gotion High-Tech launches new L600 LMFP Astroinno battery; single-cell energy density of 240Wh/kg
24 May 2023
China-based Gotion High-Tech launched its L600 Astroinno lithium manganese iron phosphate (LMFP) battery cell and pack at the 12th Gotion Technology Conference. This manganese-doped LMFP Astroinno battery features a gravimetric energy density of 240Wh/kg, a volumetric energy density of 525Wh/L, a cycle life of 4000 times at room temperature, and a cycle life of 1800 times at high temperatures, according to Dr. Cheng Qian, Executive President of the International Business Unit of Gotion High-Tech.
Volumetric cell-to-pack ratio has reached 76% after adopting the L600 cell, and the system energy density has reached 190Wh/kg, surpassing the pack energy density of current mass-produced NCM cells, said.
It is due to the high energy density of Astroinno battery that we can enable a range of 1000km without relying on NCM materials.
—Dr. Cheng
L600 Astroinno battery cell
According to Dr. Cheng, after ten years of in-house research on lithium manganese iron phosphate (LMFP) materials, Gotion High-Tech solved the challenges of Mn dissolution at high temperatures, low conductivity, and low compaction density through utilizing co-precipitation, doping encapsulation technology, new granulation technology and new electrolyte additives.
Gotion High-Tech’s breakthroughs in LMFP, on the one hand, are due to the forward-looking materials deployment of the company, which obtained the “New Product Certificate of IFP1865140-15Ah Prismatic LMFP Battery” in 2014, and received the “New Product Certificate of LMFP Carbon Composite Cathode Materials for Lithium-ion Batteries” in 2016; on the other hand, the achievement is also attributable to the company’s R&D efforts worldwide.
Its research institution in Cleveland, Ohio has developed a new electrolyte for LMFP, which has greatly improved the cycle and storage performance at high temperatures. With its in-house LMFP materials and electrolytes, Gotion High-Tech successfully developed the Astroinno L600 battery cell.
The LMFP Astroinno L600 battery cell is scheduled to begin mass production in 2024, said Dr. Cheng.
According to Dr. Cheng, in addition to the upgrade and innovation of the battery material system, there are also several technical breakthroughs and innovations concerning the Astroinno battery pack developed based on the new battery cell.
Astroinno battery pack
The Astroinno battery pack adopts sandwich-structure double-sided liquid cooling technology and a minimalist design approach, which reduces the number of structural parts of the battery pack by 45% and lowers the weight of structural parts by 32%.
The minimalist electrical design enables the length of the battery pack wiring harness to drop from 303 meters to 80 meters—only 26% of that of previous battery packs—but the volumetric cell to pack ratio has reached 76% and the pack energy density has reached 190Wh/kg, outperforming the energy density of NCM batteries currently on the market.
In other words, without adopting the NCM battery system, Gotion High-Tech’s Astroinno battery pack has achieved a range of 1000km for the first time in the industry, and achieves more than 1800 cycles of 18-minute fast charging.
In addition, intrinsic safety is also the main advantage of Astroinno battery pack: the thermal decomposition temperature of the materials it used is much higher than that of ternary materials, which makes the materials intrinsically safe. The in-house thermal insulation materials can withstand a high temperature of up to 1200°C, which is equivalent to putting a layer of heat-insulating skin on the battery cell surface, and it provides four layers of ultimate safety protection through rapid heat exhausting channels set for extreme circumstances and active safety BMS.
The product has passed all penetration, hot box, overcharge, over-discharge, thermal runaway, crush, and short circuit tests according to the new national standard.
On 10 May, Gotion High-Tech announced that its wholly-owned subsidiary, Hefei Gotion High-Tech Power Energy Co., Ltd. received a procurement letter from Volkswagen AG and that the company has thus become a designated supplier for the automaker’s overseas markets. (Earlier post.)
Those are the specs I was hoping to see for the last ten years or so, really decent lifespan even with fast charging, safety and energy density without using scarce and expensive materials.
Never mind solid state and energy densities of 400KWh/kg to enable flight, this should do the job for cars and trucks at good cost sustainably.
Posted by: Davemart | 24 May 2023 at 01:10 AM
That battery case looks like an ID 4 from Volkswagen. Fingers crossed they are the first to get this battery
Posted by: Variant003 | 24 May 2023 at 06:13 AM
' On 10 May, Gotion High-Tech announced that its wholly-owned subsidiary, Hefei Gotion High-Tech Power Energy Co., Ltd. received a procurement letter from Volkswagen AG and that the company has thus become a designated supplier for the automaker’s overseas markets.'
And from the linked earlier post on this forum:
https://www.greencarcongress.com/2023/05/20230513-gotion.html
' Gotion began supplying LFP cells to Volkswagen China in early 2022. The cells adopt the same design and specifications as those for the Chinese market, and are aimed at Volkswagen Group's full range of new energy vehicles. '
So yup, they should be in the ID4
Posted by: Davemart | 24 May 2023 at 09:20 AM
Other Chinese companies looking at LMFP batteries:
https://pandaily.com/chinese-firms-test-lithium-manganese-iron-phosphate-batteries/
As you will note in comparing the present article to the one I link, at the time Gorton were still testing ( July 22 ) but are now going to production.
I would guess that BYD and CATL will not be far behind.
Posted by: Davemart | 25 May 2023 at 10:55 AM
Just to put some rough numbers on it, LFP battery materials costs are around 70% of lithium ion, and LMFP costs are similar.
The downside of LFP has been energy density compared to NMC, but this LMFP battery seems to have fixed that.
They seem to have sacrificed a wee bit in terms of cycle life compared to LFP, but are streets ahead of NMC.
Posted by: Davemart | 25 May 2023 at 11:35 AM
Good to see an LFP alternative rising.
However, I am still hoping and waiting for Na-ion or other alternatives (Al-ion, Mg-ion,. K-ion...).
Will we see CATL Na-ion this year?
Posted by: peskanov | 25 May 2023 at 01:44 PM
Hi peskanov.
I have been heavily critical of what I regarded as over-selling of BEVs, with potential costs and capabilities talked about as though they were current.
So it behoves me to say that as far as I am concerned, this battery sounds 'good enough' for BEV cars.
Can improvements be made, from solid state to other radically different chemistries, perhaps making for instance far greater abilities for flight etc, sure!
But they are not essential for cars, as this will do, so they are nice to have, but not a show stopper if they are delayed so far as cars are concerned.
I still feel that in some ways fuel cell plug in hybrids are demonstrably better, in range and ease of use, but this battery would be great for that as well as BEVs, so is not an issue.
Posted by: Davemart | 25 May 2023 at 02:36 PM
Hi Davemart,
sure; it's good to have a lighter LFP alternative for cars.
It's just that I am kind of hoping for lithium alternatives, as the stationary market is ready to takeoff and we are still depending 100% on lithium chemistries.
In Spain, the grid is reaching solar power saturation. Now, we either start using batteries or stop adding solar power.
Posted by: peskanov | 25 May 2023 at 03:19 PM
Check out Energy Dome compressed CO2
Two commercial units of 200MWh/20MW are due to be up and running this year, after successful demos and trials.
Does the job for overnight storage, and at half the cost of lithium batteries.
Since it uses industry standard components, the problem is solved and at way lower cost than batteries IMO.
Of course, it is for larger scale than private residential use, but should do most of the heavy lifting for renewables storage other than very long term, IMO, and there are alternatives for that
Posted by: Davemart | 25 May 2023 at 04:11 PM
@ peskanov:
'However, I am still hoping and waiting for Na-ion or other alternatives ....'
It seems as those influencing technology have one-track minds. When J. Goodenough presented his Li-solution everyone worldwide pounced upon it as though it were the ultimate solution and 'good-enough'; before that it was lead-acid.
I've been keeping tabs on GMG (Aluminum & Graphene), Quantumscape, and Prieto for some years.
Quantumscape's tech platform is - in my opinion - excellent and beats all else. Personally, I would like to see a solution based on QS's tech platform and GMG's chemistry; that would be fast, cheap, safe, and light. What more could anyone want?
Posted by: yoatmon | 27 May 2023 at 03:35 AM