Secondary Batteries for xEVs is an emerging industry with a vivid future. With rising concerns for climate change, global warming, and energy security, much attention have been focused on xEVs, and as xEV industry rises secondary battery for xEVs will rise respectively. By year 2030 xEV market will dominate the automotive industry. The main factors accountable for such growth are: 1. Oil price; 2. Battery price; and 3. Technology. The oil price has been on the rise, and as the oil price rises more consumers will choose xEV over internal combustion engine vehicles due to lower operational cost. A major challenge for secondary batteries for xEVs is the price. Secondary batteries in xEVs can cost as much as fifty-percent of total vehicle price. The most expensive component of secondary battery is the cell, which inhabits approximately sixty-five-percent of total battery pack price. Currently lithium-ion batteries are most commonly used in xEVs, due to their light weight, high energy density, and high voltage capacity. The price of lithium is expensive for OEMs, due to lack of purchasing power. However, as demands for xEVs rise, secondary batteries will be mass produced, giving purchasing power to lower the rate of lithium. As lithium price declines, price of xEVs will decline, leading to higher demand of xEVs. Regarding manufacturing of secondary batteries, no set technology standards exists, leading to inefficient manufacturing process. As manufacturers experience learning curve and set technology standards, it will make manufacturing process more efficient and are able to manufacture batteries at lower price. With combination of three factors, secondary batteries for xEVs will grow at rapid rate. In order for firms to gain competitive advantage within the secondary battery market the firms must utilize Vertical Integration R&D Management Strategy. The paper will study three types of R&D Management Strategies: 1. Joint Venture R&D Management Strategy; 2. Outsourcing R&D Management Strategy; and 3. Vertical Integration R&D Management Strategy. In the emerging stage of Secondary Battery industry Joint Venture R&D Management and Outsourcing R&D Management Strategy can be utilized; however, in order for firms to gain higher profit and to gain competitive advantage Vertical Integration R&D Management Strategy must be utilized. Vertical Integration R&D Management Strategy is to keep all stages, from creating cells to assembly of battery packs, within the company or group. By utilizing Vertical Integration R&D Management, a firm will be able to create higher profit through utilizing purchasing power, efficiency, and lower cell price. Capability of lowering cell price is a critical factor in dominating the secondary batteries for xEVs market. With Vertical Integration R&D Management, by keeping cell production in-house the cost of cells will be lowered; also will have the opportunity for mass production. The paper studied the forecast of xEVs in 2030, giving three different scenarios: 1. Slow rate growth; 2. Steady rate growth; and 3. Accelerated rate growth. The forecast utilized oil price as the main factor of growth rate of xEVs. To conclude, this study will look at xEV forecast, which will increase rapidly, then determine which strategy to utilize in order to gain competitive advantage in secondary batteries for xEVs market.