Tesla is turning to Mozambique for a key component in its electric car batteries in what analysts believe is a first-of-its-kind deal designed to reduce its dependence on China for graphite . Elon Musk's company signed an agreement last month with Australia's Syrah Resources, which operates one of the world’s largest graphite mines in the southern African country. It's a unique partnership between an electric vehicle manufacturer and a producer of the mineral that is critical for lithium-ion batteries . The value of the deal hasn't been released. Tesla will buy the material from the company's processing plant in Vidalia,…