Método rápido de análise do estado de saúde (SOH) de baterias de íon lítio de telefones celulares descartados empregando os conceitos da técnica de titulação galvanostática intermitente (GITT) Discarded cell phone lithium ion batteries state of health quick method analysis by galvanostatic intermittent titration technique (GITT) concept

The state of health (SOH) is a important evaluation parameter to rechargeable batteries, because determine its cycle life and help on electric devices supplied by batteries maintenance. In this work the lithium ion discards cell phones batteries state of health and apparent diffusion coefficient (D ap ) were measured and correlated which purpose is diminish the batteries analyze time. The apparent diffusion coefficient is a ionic diffusion coefficient modification from GITT technique. The SOH and D ap correlation is well behaved, disclosing a cubic dependency. The time analyze was reduced by more than 1 h.