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To answer your question it is important to know which compound dissociate completely in water when in aqueous solution. For example, consider following reaction: $$\ce{AgNO3_{(aq)} + NaCl_{(aq)} -> AgCl_{(s)} + NaNO3_{(aq)}} \tag1$$ When ionic compound dissolves in water, each molecule separates to corresponding ions, which influenced by water. All of $\... 5 The general textbook formula for the Li ion battery is$\ce{Li_{1-a}Ni_{1-x-y}Mn_{x}Co_{y}O2}$, and the simplest/earliest type has$y=1$, i.e. cobalt-only. These "mixed (lithium transition metal) oxides" have a layered structure (see e.g. wikipedia), where you can relatively easily electrochemically remove (and later reinsert) a part$a\$ of the Li atoms, ...