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 he 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, prices 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 manufactures 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 Strategy. The paper will examine three types of vertical integration strategies: 1. Full Integration Strategy; 2. Hybrid Integration Strategy (Joing Venture); and 3. Non-Integration Strategy (Outsourcing). In the emerging stage of Secondary Battery industry Hybrid Integration and Non-Integration Strategies can be utilized; however, in order for firms to maximize profits and to gain competitive advantage Full Vertical Integration Strategy must be utilized. Full Vertical Integration Strategy will keep all stages, from cell production to battery pack assembly, within the company or group. By utilizing Full Vertical Integration, 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. Majority of mark-ups in battery system are consumed by cell production, while mark-ups in battery pack assembly remains minimal. With Full Vertical Integration, by keeping cell production in-house the cost of cell production will decrease; also providing the opportunity for mass production, leading to maximum profitability. 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. Other factors, such as fuel cell technology and ethanol technology, were taken into account to have impact on xEV forecast; however due to fuel cell technology only being in research stage, and ethanol fuel technology not being considered as “Clean Fuel” due to process of producing ethanol fuel, such as heavy diesel-powered equipments. To conclude, this study will examine the xEV forecast and vertical integration strategy to illustrate that full vertical integration strategy is the optimum strategy to maximize profitability in secondary battery for xEV industry.