Apple’s first iPhone phablet – the larger 5.5-inch iPhone 6 version rumored to launch later this year – may be delayed until 2015 according to a new report from Taiwan’s Business Times. Apple is apparently facing some supply chain issues with the device, though we have seen similar reports ahead of Apple’s iPhone launches every year. The publication says the iPhone maker needs significantly thinner batteries for its bigger iPhone, at least when compared to previous-generation devices, and suppliers are currently struggling to meet that demand. The report says the 5.5-inch iPhone 6 will need a battery that’s just 2mm thick, or one-third thinner than batteries from competing devices, which typically measure 2.8mm or 2.9mm. The iPhone 6 is going to be even thinner than