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Indian start-up plans next stage of second-life lithium-ion ESS development

Fri, 01/27/2017 - 12:34 -- Paul Crompton

An Indian start-up has developed a prototype energy storage system using recycled lithium batteries from electric vehicles.

Totus Power has field trailed a prototype/proof of concept in India, but remains 12 months and $350,000 away from doing a pilot with a pre-production prototype.

The company can take a used EV module, connect it to its own battery management system and charge an ESS from a solar or a plug-in power source.

It can be used to replace lead-acid batteries or fossil fuel energy generation, said Siva (Shiv) Rajendran, founder and CEO of Totus Power

He told BBB the company has all the infrastructure/relationships to make up to 5,000 units a year.

The company is currently sourcing end-of-life batteries from an unnamed ‘large’ automaker’s ‘most popular EV model’.

Rajendran said: “The deal is in the works, hence I can’t share the name yet. This is already a large supply pool, which we will take a few years to fully utilise. Conservatively, we can make 10,000 units a year - if not more. 

“It seems very simple to manufacture a EV battery down to a Totus Power product.

“The Modules are the building blocks of a EV battery and is shipped in boxes to us by the automaker directly. We already pre decide what level of quality these used modules are, i.e SOH%). 

“Some of our knowledge is in correlating this SOH% to real world life, along with the supply chain and associated shipping and recycling regulations.  

“But they say the devil is in the details: So over the next 12 months, when we start writing our assembly/manufacturing procedures, I will have a better handle on what ‘simple to manufacture’ actually means.”

However, because the firm is mainly self-funded and has only secured a few grants to date, its speed of execution is dependent on more cash becoming available. 

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