- Joined
- 25 November 2020
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- 4
Has everyone received their refund from the SPP yet?
I’m still waiting
I’m still waiting
went direct to the bank. day after allocationHas everyone received their refund from the SPP yet?
I’m still waiting
Oh wait, I lie. It went into a different account than what I was expectingHas everyone received their refund from the SPP yet?
I’m still waiting
Talga has opened with a bang this morning.
Up 22c /15% with no new announcement.
Could be the penny has dropped for a new fund manager or some news in the wings.
Here's what TLG said about Silicon Anodes
Higher capacity through silicon anode
The electric mobility industry needs higher capacity batteries for longer range
Silicon anodes have profound issues to overcome in practical use
- Silicon anode is theoretically capable of >10x energy capacity of graphite anode in Li-ion battery
- But today, silicon is being blended into graphite in only small amounts (3-5% weight) due to major and fundamental issues
- Higher energy capacity can translate to longer range of electric vehicles or less weight (smaller batteries), so solving silicon issues can have big impact on EV use and production
-pulverization/breakage
- Silicon changes volume by 300% in charge/discharge cycles (compared to graphite 10%)
- Volume change leads to a range of issues including:
-delamination from current collector
-build-up of thick, solid electrolyte interface (SEI) decreasing lithiation kinetics and ‘robbing’ lithium from cathode and electrolyte
- So the more silicon, the shorter battery life, and failure ensues (rapidly)
Ultra-thin carbon nanomaterial enabling practical silicon anodes
Talga graphene-enhanced silicon anode blended into commercial graphite anode
- Graphene additives or composites can enable silicon anodes to stabilise and extend cycle life
- Graphene can work in various modes including protective coatings and nano-structures to control pulverisation during volume change, retain kinetics and moderate SEI formation
- The silicon content in Talnode-Si is ~30%Wt
- Silicon enables a range of loadings in existing anode blends
- Commercial impact is potential longer range of electric vehicle, or same range with less weight from smaller battery
The ADO piece today includes :
Collaborator 5 - (A large central European silicon focused chemical company developing anode active materials.)
Collaborator 5 has developed a high energy anode design, which requires capacity limitation of the anode to reduce stresses during the lithiation (charging) of the silicon, to promote an increase in cycle life capacity. Using this approach Collaborator 5 undertook several tests of binder formulations using AnteoX as an additive. The results from the first set of tests indicated that the addition of AnteoX to Collaborator 5’s high energy anode design demonstrated an up to 16% improvement in cycle life, when tested in full cells against commercial cathode materials. The result suggests that the effectiveness of AnteoX is much more prominent if the anode coating is placed under greater stress caused by higher levels of silicon lithiation leading to higher anode utilisation and consequently energy capacity (Wh).
If you look at the collaborations that Talga has, in Europe, I think there is a fair probability that one of them ... from ABB , BASF on down ... may well be it. The amount of money being spent would certainly bring about shoulder rubbing at high levels.It's intriguing isn't it ?
Talga UK anode production would potentially deliver secure, cost-effective and sustainable active battery material for a more self sufficient UK electric vehicle industry. The Studies found it is technically and economically feasible to refine and produce Talga anodes in the UK, and identified the factors within the commercial, engineering, permitting and energy supply aspects of the project that would need to be further investigated.
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