Design a Logo for Petalite

Hello Freelancers, I am looking for a logo for a new company called 'Petalite' We design lithium battery products for consumer electronics, the name 'Petalite' comes from the mineral in which Lithium was first discovered, The name is derived from the Greek word 'petalon', which means leaf. The product we are making is a fast charge battery for cell phones. The logo will be used in: web, social media, print, publishing, video etc. Attached is an old design of the logo, I would like the logo and the text to be detached from each other, so the two can be used separately. You can use any colour or mix of colours. I am looking for a modern, flat look with any type of font, We will need the vector or Photoshop path of the winning logo , so make sure you design the logo in path or vector not pixels . Full Photoshop and PDF files etc required to allow reproduction and the like for selected winner. Must be unique design and original work. Creative ideas are appreciated Tax invoice required from winner. Thanks, Leigh Purnell